pub std specs drainage works 3rd ed july 2002.doc

8/14/2019 PUB Std Specs Drainage Works 3rd Ed July 2002.doc

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Public Utilities Board

Drainage Department

STANDARD SPECIFICATIONFOR DRAINAGE WORK

3rd Edition July 2002


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PUBLIC UTILITIES BOARD

DRAINAGE DEPARTMENT

INDEX TO STANDARD SEPCIFICATION FOR DRAINAGE WORK

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PART I - GENERAL

1 General Descripi!n " " " " " 1

# $easure%en O& Sele%en " " " " " 1

' W!r(ing Wi) O)er C!nrac!rs " " " " " 1

* E+ising Ser,ice " " " " " 1

Access " " " " " #

. Fl!/ O& Tra&&ic " " " " " #

0 In&!r%ai!n " " " " " #

Discrepancies " " " " " #

2 W!r(ing Space " " " " " '

13 Sie Sur,e4ing W!r( " " " " " '

11 5enc) $ar( " " " " " *

1# Elecrici4 Suppl4 " " " " " *

1' O&&ice F!r S6O6 " " " " " *

1* C!nrac!r7s Plan " " " " "

1 C!ninu!us W!r(ing An8 O,eri%e " " " " .

1. Fl!/ T)r!ug) Drain An8 Canal " " " " " .

10 P!llui!n C!nr!l $easures An8 Pre,eni!n O& $!s9ui! 5ree8ing .

1 Rae O& E+ca,ai!n An8 Drain C!nsruci!n " " " 0

12 Sa&eguar8ing Pr!peries A8:acen T! Sie " " " 0

#3 $e)!8 O& W!r(ing " " " " "

#1 C!&&er8a% An8 Te%p!rar4 Ti8egaes " " " "

## Preser,ai!n O& Trees;


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#' C!ncreing Pr!gra%%e " " " " " 2

#* Pr!eci!n O& W!r( " " " " " 2

# De%!lii!n An8 $a(ing G!!8 " " " " " 2

#. Srucural Tes " " " " " 2

#0 Pre,eni!n O& Fl!ai!n " " " " " 13

# Inspeci!n An8 Replace%en O& De&eci,e W!r( " " " 13

#2 Reinsae%en O& Sur&ace " " " " " 11

'3 Reinsae%en O& F!un8ai!n An8 R!a8 Sur&ace " " " 11

'1 N!%inae8 Su?-C!nrac!r An8 O)er Supplier " " " 1#

PART II - $ATERIAL

'# San8ar8 O& $aerial " " " " " 1'

'' Sa%ple O& $aerial " " " " "

1'

'* Ti%?er " " " " " 1'

' Ti%?er Preser,ai,e " " " " " 1*

'. 5a(au Pile " " " " " 1*

'0 Ce%en " " " " " 1

' C!ncreing Aggregae " " " " " 1

'2 Waer " " " " " 1.

*3 Rein&!rce%en " " " " " 1.

*1 Srucural Seel " " " " " 10

*# Tesing O& Seel " " " " " 10

*' D!/el 5ar " " " " " 10

** Waerpr!!& Paper " " " " " 10

* E+pansi!n @!ining $aerial " " " " " 10

*. @!in Sealing C!%p!un8 " " " " " 1


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*0 Waer 5ar " " " " " 1

* Re9uire%ens On Precas C!ncree nis " " " " 1

*2 Presresse8 C!ncree Sla? " " " " " #3

3 C!ncree Pipe =Or8inar4 P!rlan8 Ce%en> Wi)!u Lining " #3

1 San8 " " " " " #1

# Granular $aerial " " " " " #1

' Buarr4 Ri8 " " " " " #1

* S!ne F!r Pic)ing " " " " " #1

ar8c!re " " " " " #1

. 5ric( " " " " " #1

0 Graing C)e9uer Plaes F!r Cl!se8 DrainCul,er " " ##

Alu%iniu% Rungs " " " " " ##

2 an8railing " " " " " ##

.3 Pain " " " " " #'

.1 Er!si!n C!nr!l 5lan(es " " " " " #'

PART III - WORK$ANSIP

.# W!r(%ans)ip Generall4 " " " " " #

.' E+ca,ai!n Generall4 " " " " " #

.* Trial !les " " " " " #0

. Trial 5!ring " " " " " #0

.. E+ca,ai!n In R!c( " " " " " #0

.0 E+cessi,e E+ca,ai!n " " " " " #

. Pre,ening Da%age Due Su?si8ence " " " " #2

.2 Ti%?ering O& E+ca,ai!n " " " " " #2

03 Ti%?ering Le&-In " " " " " '3


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01 Seel Trenc) S)eeing " " " " " '3

0# Seel S)ee Piling " " " " " '3

0' Lia?ili4 F!r Ti%?ering " " " " " '1

0* Drainage " " " " " '1

0


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2 Pre%i+ An8 Rea84-$i+e8 C!ncree " " " " *'

2. C!ncreing Pr!gra%%e " " " " "

**

20 an8ling An8 Transp!ring C!ncree " " " " **

2 Placing C!ncree " " " " " *

22 C!%paci!n O& C!ncree " " " " " *.

133 C!ncreing T)r!ug) Waer " " " " " *0

131 Finis) O& C!ncree " " " " "

*0

13# Pr!eci!n An8 Curing O& C!ncree " " " " *

13' Tess On ar8ene8 C!ncree " " " " " *2

13* C!ncree A88ii,e " " " " " *2

13 Gran!li)ic C!ncree " " " " " 3

13. ar8c!re " " " " " 3

130 C!nsruci!n @!in " " " " " 3

13 Per%anen @!in " " " " " 1

REINFORCE$ENT

132 5en8ing Rein&!rce%en " " " " " 1

113 Fi+ing Rein&!rce%en " " " " " #

111 Fi+ing Fa?ric Rein&!rce%en " " " " " '

11# Pr!ecing Rein&!rce%en " " " " " '

STTERING

11' F!r%/!r( " " " " " *

11* Re%!,al O& F!r%/!r( " " " " "

11 5!+ing Or Cuing Ou " " " " " .


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11. 5uil8ing An8 Gr!uing In " " " " " 0

110 5!n8ing Ties " " " " " 0


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5RICKWORK; PLASTER AND TILING

11 5ric(/!r( " " " " " 0

112 $!rar " " " " "

1#3 Seing Ou " " " " "

1#1 5!n8ing 5ric(/!r( " " " " "

1## Rein&!rce8 5ric(/!r( " " " " " 2

1#' P!ining " " " " " 2

1#* 5l!c( Wall " " " " " 2

1# Pul!g !les " " " " " 2

1#. De&eci,e W!r(

59

1#0 $!rice; !le; C)ase; Ec " " " " " .3

1# Da%p Pr!!& C!urse " " " " " .3

1#2 Preparai!n O& Sur&ace F!r Ren8ering An8 Scree8ing " " .3

1'3 Ce%en $!rar Ren8ering " " " " " .3

1'1 Waerpr!!& Ce%en $!rar Ren8ering " " " " .3

1'# S)ang)ai Plaser " " " " " .1

1'' Fl!!r Tiling Scree8 " " " " " .1

PIPE CONDIT DRAIN

1'* Seing Ou " " " " " .1

1' Pipe 5e88ing Wi) Granular $aerial " " " " .#

1'. C!ncree 5e8; aunc)ing An8 Surr!un8 T! Pipe " " " .#

1'0 an8ling Pipe " " " " " .'

1' Pipela4ing " " " " " .'

1'2 @!ining C!ncree Pipe " " " " " .*

1*3 Ce%en $!rar " " " " " .*


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1*1 Fracure O& Pipe " " " " " .*

PAINTING

1*# Paining Generall4 " " " " " .*

1*' Paining $eal Sur&aces " " " " " .

1** Paining Ce%en An8 San8 Plaser Sur&aces " " " 03

1* General Re9uire%ens " " " " " 01

ROAD

1*. E+ca,ai!n T! F!r%ai!n " " " " " 0*

1*0 Preparai!n O& Su?-Gra8e " " " " " 0*

1* Ker? " " " " " 02

1*2 Su?-5ase An8 5ase " " " " " 02

13 Asp)alic Wearing C!urse " " " " " *

11 Tac( C!a " " " " "

1# Pre%i+ Sur&acing " " " " "

TRFING

1' T!p S!il " " " " " 2

1* Grass " " " " " 2

CO$PLETION WORK

1 Cleaning p " " " " " 23

1. Final Inspeci!n " " " " " 21

10 $ainenance Peri!8 Inspeci!n " " " " "

21

APPENDIX A

REBIRE$ENT FOR PER$ANENT REINSTATE$ENT

1 Applicai!n " " " " " 2#

# Re9uire%en " " " " " 2#


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' A8,ice O& C!%%ence%en O& W!r( " " " " 2#

* O?sruci!n " " " " " 2#

Lig)ing; Wac)ing Pr!eci!n " " " " " 2#

. Suppl4 O& Granie " " " " " 2#

0 !%i+ Asp)al " " " " " 2'

$aerial F!r !%i+ Asp)al " " " " " 2'

2 Asp)al $i+ing An8 Deli,er4 " " " " " 2*

13 E+en8 O& Per%anen Reinsae%en " " " " 2

11 C!%plee Reinsae%en In R!a8s" " " " " 2

1# Parial Reinsae%en In R!a8 " " " " " 2

1' $ainenance O& Trenc)es Pri!r T! Per%anen Reinsae%en " 2.

1* E+ca,ai!n 5ac(&illing " " " " " 2.

1 Re%!,al O& All E+ca,ae8 $aerial " " " " 2.

1. R!ller An8 R!lling " " " " " 20

10 5ase C!urse " " " " " 20

1 Tac( C!a " " " " " 20

12 !%i+ Asp)al Sur&acing " " " " " 2

#3 T!p S!iling An8 Tur&ing " " " " " 2

#1 Reinsae%en O& Drains Precas ni " " " " 2

## C!ncree F!r Reinsae%en W!r(" " " " " 22

#' Reinsae%en O& O)er Sur&ace " " " " " 22

#* Inspeci!n O& C!%plei!n W!r( " " " " " 22

# $ainenance O& Sur&ace " " " " " 22


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GENERAL Page 1

PART I - GENERAL

1 GENERAL DESCRIPTION

=a> T)e C!nrac!r s)all n!e )a )e 8escripi!n !& )e W!r(s e%?race8 in )e

C!nrac; as gi,en in )e C!nrac Speci&icai!n; is a gui8e an8 )e s)all %a(e allnecessar4 c)ec(s an8 in,esigai!ns ! ascerain )e acual naure an8 sc!pe !&

/!r(6

=?> I %us ?e clearl4 an8 8e&iniel4 un8ers!!8 ?4 )e C!nrac!r )a )e /ill ?e

8ee%e8 ! )a,e ,isie8 )e /)!le !& )e sie an8 asceraine8 )e naure !& )e area;

accessi?ili4 ! )e /!r( sie; l!cai!n !& )e sie acc!%%!8ai!n; ec6 T)e

C!nrac!r /ill ?e )el8 s!lel4 resp!nsi?le &!r %a(ing all )e 8eaile8 arrange%ens

an8 c!-!r8inaing /i) )e !/ners !& all lan8s /)en )e e+ecues an4 par !& )e

/!r(s )a ener !r a&&ec suc) lan86

=c> T)e C!nrac!r is a8,ise8 )a i /ill ?e 8ee%e8 ! ?e )is s!le resp!nsi?ili4 !ascerain &!r )i%sel& )e e+en !& /!r( )a is re9uire8 ! ?e 8!ne !n sie an8 !

generall4 !?ain )is !/n in&!r%ai!n !n all %aers a&&ecing )e c!%plee

e+ecui!n !& )e W!r(s ! )e enire sais&aci!n !& )e S6O6 as n! clai% &!r e+ras;

in c!nse9uence !& an4 allege8 ign!rance in an4 respec; /ill ?e eneraine8 ?4 )e

5!ar86

=8> Al)!ug) ,ari!us ?uil8ings; se/ers; 8rains; ec %a4 ?e s)!/n !n )e 8ra/ings; )e

C!nrac!r /ill ?e )el8 s!lel4 resp!nsi?le &!r %a(ing )is !/n in,esigai!ns an8

&!r all!/ing &!r an4 e+ra c!ss in )is raes 8ue ! )e presence !& all !?sruci!ns;

/)e)er in8icae8 !n )e 8ra/ings !r n!6

2 MEASUREMENT OF SETTLEMENT

$easure%en !& sele%en s)all c!n&!r% ! S6S6 CP*6 F!r eac) es; /! signe8

c!pies !& )e &iel8 rea8ings an8 )e grap)s s)all ?e su?%ie8 ! )e S6O6 /i)in ' /!r(ing

8a4s !n c!%plei!n !& )e es6

3 WORKING WITH OTHER CONTRACTORS

T)e C!nrac!r is a8,ise8 )a )ere %a4 ?e !)er C!nrac!rs /!r(ing /i)in )e

sie area6 T)e C!nrac!r %a4 )ere&!re ?e gi,en :!in p!ssessi!n in s!%e seci!ns !& sies

/i) )e !)er C!nrac!rs &!r )e purp!se !& carr4ing !u )is c!nracual !?ligai!n an8 )e

s)all in n! /a4 iner&ere /i); i%pe8e !r !)er/ise pre,en )ese !)er C!nrac!rs &r!%

carr4ing !u )eir c!nracual !?ligai!ns6 T)e C!nrac!r s)all all!/ in )is prices; /)en

en8ering; &!r a&&!r8ing reas!na?le &aciliies ! )e !)er C!nrac!rs an8 &!r an4

iner&erence /i) )is /!r( &r!% )ese !)er c!nrac !perai!ns6

4 EXISTING SERVICE

T)e C!nrac!r s)all a(e all 8ue care an8 necessar4 precaui!nar4 %easures !

ensure )a n! 8a%age !ccurs ! an4 e+ising se/er; /aer !r gas %ains; elecrici4 !r

elep)!ne ca?les; cul,er an8 an4 !)er e+ising ser,ices6 An4 8a%age arising !u !& )e


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GENERAL Page #

C!nrac!r7s /!r( in suc) respec /ill ?e %a8e g!!8 ! )e enire sais&aci!n !& )e S6O6

?4 )e C!nrac!r a )is !/n e+pense an8 n! clai% ! )e c!nrar4 /ill ?e eneraine8 ?4

)e 5!ar86

5 ACCESS

=a> T)e C!nrac!r /ill ?e )el8 s!lel4 resp!nsi?le &!r %ainaining clean; sa&e;

a8e9uae an8 &ree pe8esrian an8 ,e)icular access ! )e ,ari!us pre%ises a8:acen

! )e W!r(s6 T)e C!nrac!r s)all %ainain clean; sa&e; a8e9uae an8 &ree

passage/a4 al!ng r!ues /i)in )e /!r(ing space6

=?> T)e C!nrac!r /ill als! ?e re9uire8 ! pr!,i8e &aciliies ! )e /!r(ing sie !r

sies6 Suc) access %us ?e pr!perl4 c!nsruce8 an8 %ainaine8 ! a&&!r8 a sa&e

access ! pe8esrians an8 ,e)icles6 T)e access %a4 ?e %a8e a,aila?le ! an4 !)er

C!nrac!rs an8 super,is!r4 sa&& !n )e insruci!ns !& )e S6O66

6 FLOW OF TRAFFIC

=a> T)e C!nrac!r s)all ensure )a )e &l!/ !& ra&&ic !n )e r!a8s an8 access is

%ainaine8 a all i%es 8uring )e c!nrac6 T)e C!nrac!r is ! pr!,i8e suc)

&lag%en; appr!,e8 signs an8 signalling e9uip%en as %a4 ?e necessar4 8a4 an8

nig) ! c!nr!l )e ra&&ic ! )e sais&aci!n !& )e S6O6 an8 )e appr!priae

C!nr!lling Au)!ri46 In )e planning an8 e+ecui!n !& an4 e%p!rar4 !r

per%anen /!r(s /)ic) %a4 a&&ec )e ra&&ic &l!/ an8!r access ! sie !r !)er

pr!peries; )e C!nrac!r s)all c!-!perae cl!sel4 /i) )e S6O6 an8 )e

appr!priae C!nr!lling Au)!ri46

=?> W)ene,er re9uire8 ?4 )e S6O6; )e C!nrac!r s)all re%!,e /i) 8ue c!%pliance

an8 a )is !/n e+pense an4 plan; %ac)iner4; saging an8 !)er %aerials /)ic)

%a4 iner&ere /i) ra&&ic an8 )e use !& r!a8s; &!!pa)s !r !pen spaces !n )e sie

!r a8:acen )ere!6

7 INFORMATION

Suc) in&!r%ai!n as is (n!/n ! )is Depar%en /ill ?e %a8e a,aila?le ! )eC!nrac!r6 T)e 5!ar8 8!es n!; )!/e,er; e+en8 an4 guaranee as ! )e accurac4 !& suc)

in&!r%ai!n6

DISCREPANCIES

S)!ul8 )ere ?e an4 8iscrepancies a%!ng )e Dra/ings; Speci&icai!ns an8 5ills !&

Buaniies; )e C!nrac!r s)all re&er )e %aer ! )e S6O6 ?e&!re c!%%ence%en !&

/!r(6 T)e S6O6 /ill 8eci8e as ! /)ic) 8!cu%en /ill a(e prece8ence an8 )is 8ecisi!n

/ill ?e &inal6 N! clai%s ! )e c!nrar4 s)all ?e eneraine8 ?4 )e 5!ar86


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GENERAL Page '

! WORKING SPACE

=a> T)e C!nrac!r is re9uire8 ! c!n&ine )is /!r(ing areas /i)in )e /!r(sie an8

n! ! encr!ac) !n! a8:acen pr!peries6 T)e C!nrac!r is ! n!e )a )e is

re9uire8 ! pr!cure &!r )i%sel& a )is !/n c!ss an4 a88ii!nal /!r(ing an8 s!rage

spaces6

=?> T)e C!nrac!r s)all ensure )a )e %!,e%en !& )is ,e)icles in an8 !u !& )e sie

s)all n! )a%per )e &ree &l!/ !& ,e)icular an8 pe8esrian ra&&ic6

=c> T)e C!nrac!r s)all a(e e,er4 precaui!n ! pre,en )is e%pl!4ees &r!%

respassing !n lan8s !usi8e )e c!nrac sie6

=8> T)e C!nrac!r s)all ensure )a )e area an8 access un8er use is pr!perl4

%ainaine8 an8 )a )e4 /!ul8 ?e reinsae8 ! )eir !riginal sae up!n

c!%plei!n !& )e /!r( all ! )e enire sais&aci!n !& )e S6O66

1" SITE SURVE#ING WORK

1361 GENERAL

=a> T)e C!nrac!r s)all pr!,i8e a &ull-i%e !&&icer c!%peen in sur,e4ing !n

sie ! carr4 !u engineering sur,e46

=?> T)e C!nrac!r s)all pr!,i8e an8 %ainain in g!!8 /!r(ing c!n8ii!n !n

sie a all i%es a le,elling insru%en an8 )e!8!lie an8 suc) !)er

e9uip%en an8 pers!nnel as )e S6O6 %a4 re9uire &!r )e c)ec(ing an8

%easuring !& /!r(s6

136# SETTING OT AND LE T)e C!nrac!r s)all engage a Regisere8 Sur,e4!r an8 suppl4 all la?!ur;

%aerial an8 e9uip%en necessar4 &!r )e seing !u !& )e /!r(s in

acc!r8ance /i) )e C!nrac an8 Dra/ing Speci&icai!ns; !r as re9uire8 ?4

)e S6O66 T)e seing !u s)all ?e carrie8 !u ?4 a Regisere8 Sur,e4!r an8

ceri&ie8 ?4 )i%6

=?> T)e lines ! ?e se !u !n sie s)all generall4 inclu8e a ?ase line; )e

pr!p!se8 8rain lines; 8rainage reser,e lines; li%is !& )e /!r(ing space

/)ere speci&ie8 in )e C!nrac an8 an4 !)er lines as re9uire8 ?4 )e S6O6;

inclu8ing an4 a%en8%ens6 T)ese lines s)all ?e %ar(e8 clearl4 !n sie ?4

planing pegs !r p!ss /i) pain %ar(ings !n )e gr!un8; !r an4 !)er

%eans as appr!,e8 ?4 )e S6O66

=c> T)e C!nrac!r s)all su?%i a Hseing !u7 plan 8ul4 en8!rse8 ?4

Regisere8 Sur,e4!r; ! )e S6O6 &!r )is /rien appr!,al; pri!r ! )e

c!%%ence%en !& /!r(6 T)e Hseing !u7 plan s)all ?e in )e sa%e scale as

)e C!nrac sie plans; an8 s)all s)!/ )e align%en !& )e ?ase lines;pr!p!se8 8rain lines; Drainage Reser,e lines an8 an4 !)er lines as se !u

!n sie6 T)e plan s)all als! s)!/ !)er per%anen srucures an8 &eaures in


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GENERAL Page *

)e ,icini4 !& )e /!r(s suc) as ?uil8ings r!a8s; si8e 8rains; cul,ers

?ri8ges; &encing; ser,ices pipes !r ca?les cr!ssings6

=8> T)e C!nrac!r s)all carr4 !u )e /!r(s sricl4 in acc!r8ance /i) )e

appr!,e8 seing !u plans6 An4 8e,iai!n &r!% )e plans s)all ?e

&!r/ar8e8 ! )e S6O6 &!r )is accepance an8; i& accepe8 ?4 )i%; s)all ?e

rec!r8e8 !n an a%en8e8 seing !u plan6

=e> An4 assisance /)ic) )e S6O6 %a4 ren8er ! )e C!nrac!r in seing !u

s)all in n! /a4 relie,e )e C!nrac!r !& )e enire resp!nsi?ili4 &!r )e

c!rrecness !& all seing !u6

11 BENCH MARK

T)e C!nrac!r s)all esa?lis) a8e9uae nu%?ers !& ?enc) %ar(s an8 &i+e8 p!ins

!n )e sie ! )e S6O67s 8ireci!n an8 s)all ensure )a )ese are n! 8a%age8 an8

8isur?e86 All suc) ?enc) %ar(s an8 &i+e8 p!ins s)all ?e ?ase8 !n a G!,ern%en 5enc)$ar(6

12 ELECTRICIT# SUPPL#

T)e C!nrac!r s)all %a(e )is !/n arrange%ens an8 pa4; /)ere necessar4; &!r )e

suppl4 !& elecrici4 re9uire8 &!r )e c!nsruci!nal purp!ses6

13 OFFICE FOR S$O$

=a> T)e C!nrac!r s)all pr!,i8e !n an appr!,e8 sie; a /ea)er an8 sun pr!!& l!c(-up

!&&ice /i) %!rice l!c( !r appr!,e8 sr!ng )asp; saple an8 pa8l!c( ! )e 8!!r6

T)e sie an8 4pe !& !&&ice s)all ?e 8esigne8 an8 ?uil ! )e sais&aci!n !& )e

S6O66 I s)all inclu8e pr!per %!8ern saniar4 &aciliies; /as)ing &aciliies;

elecrici4; elecrical appliances; elep)!nes; &urniure an8 &i%ens ec6; all ! )e

appr!,al !& )e S6O6 an8 &!r )e e+clusi,e use !& )e S6O6 an8 )is sa&&6

=?> T)e &!ll!/ing a8e9uae &urniure an8 e9uip%en s)all ?e pr!,i8e8 an8 %ainaine8

in g!!8 an8 usa?le c!n8ii!ns in )e sie !&&iceJ-

=i> 1 n!6 133%% + 233%% /riing a?le /i) # l!c(e8 8ra/ers

=ii> 1 n!6 ar% c)air; circular

=iii> # n!s c)airs; sraig)-?ac(

=i,> 1 n!6 133%% + 233%% 8ra/ing a?le /i) # plan 8ra/ers an8 1 s!!l

=,> 1 n!6 elep)!ne

=,i> 1 n!6 &irs ai8 (i

=,ii> 1 n!6 &ire e+inguis)er


15/110

GENERAL Page

O)er necessar4 !&&ice an8 8ra/ing e9uip%en suc) as 8ra/ing ?!ar8; T-

s9uare; se-s9uares; scales; pencils; ec6

=c> T)e !&&ice s)all ?e l!cae8 !n an appr!,e8 sie in cl!se pr!+i%i4 ! )e /!r( an8

)e C!nrac!r s)all %!,e )e !&&ices as !&en as )e S6O6 %a4 8irec ! (eep pace

/i) )e /!r(6 T)e C!nrac!r is 8ee%e8 ! )a,e all!/e8 &!r )is in )is pricing6

=8> All!/ &!r %ainaining all )e !&&ices an8 &aciliies &!r )e 8urai!n !& )e c!nrac

inclu8ing pa4ing all c)arges an8 (eeping in a clean c!n8ii!n6

=e> T)e C!nrac!r s)all arrange &!r )e !&&ice ! ?e pr!,i8e8 /i) elep)!ne &aciliies

an8 s)all (eep )e elep)!ne c!nnece8 as l!ng as i is re9uire8 an8 s)all pa4 all

c)arges &!r insallai!n; ren an8 elep)!ne calls %a8e ?4 )e S6O6 an8 )is sa&&6

=&> T)e C!nrac!r s)all als! pr!,i8e c!,ere8 car par(ing &aciliies a8:acen ! )e

!&&ice ! )e appr!,al !& )e S6O66

=g> On c!%plei!n !& )e W!r(s an8 !nl4 insruce8 ?4 )e S6O6; )e c!nrac!r s)allre%!,e )e !&&ice !ge)er /i) all is &aciliies &r!% )e sie an8 lea,e )e sie in a

i84 c!n8ii!n6

14 CONTRACTOR%S PLANT

=a> All %ec)anical plans use8 ?4 )e C!nrac!r in )e e+ecui!n !& )e W!r(s %us

?e !& suc) 4pe; sie an8 !& suc) %e)!8 !& /!r(ing as )e S6O6 s)all appr!,e6

=?> T)e S6O67s appr!,al ! )e use !& %ec)anical plans /ill n! ?e unreas!na?l4

/i))el8; ?u i& in )e S6O67s !pini!n; circu%sances arise /)ic) %a(e i 8esira?le

)a )e use !& plans s)!ul8 ?e suspen8e8 ei)er e%p!raril4 !r per%anenl4; )e

C!nrac!r s)all c)ange )e %e)!8 !& per&!r%ing )e /!r( a&&ece8 a )is !/n

c!s6 T)e C!nrac!r /ill ?e 8ee%e8 ! )a,e n! cause &!r clai% agains )e 5!ar8

!n acc!un !& )a,ing ! carr4 !u )e /!r( ?4 an!)er %e)!8 n!r /ill )e ?e

8ee%e8 ! )a,e cause &!r clai% i& an4 !)er insruci!ns issue8 ?4 )e S6O6 resuls

in )e %ec)anical plan )a,ing ei)er ! san8 i8le &!r a peri!8 !& an4 8urai!n

/)as!e,er !r ! ?e re%!,e86

=c> T)is clause s)all appl4 als! ! )e plans /)ic); in )e !pini!n !& )e S6O6; are n!

as 9uie in !peraing as )e circu%sances see% ! )e S6O6 ! /arran6

=8> T)e C!nrac!r s)all use e,er4 p!ssi?le %eans ! pre,en n!ise an8 ann!4ance !

)e resi8ens !& )e neig)?!ur)!!8 in /)ic) )e W!r(s an8 )e C!nrac!r7s

s!rage 4ar8s are siuae8 an8 all )e %ac)iner4 %us ?e !& suc) 8esign an8 s!

arrange8 ! ?e reas!na?l4 &ree !& n!ise in /!r(ing6

=e> All e9uip%en an8 plan ?eing use8 !n )e W!r(s s)all ?e e9uippe8 /i) n!ise

c!nr!l 8e,ices c!%pl4ing /i) all la/s an8 regulai!ns pre,ailing a )e i%e !&

use6

=&> T)e C!nrac!r /ill n! ?e all!/e8 ! %a(e an4 e+ra c)arge &!r /!r( !r e+penseincurre8 in c!%pl4ing /i) )e re9uire%ens !& )is clause6


16/110

GENERAL Page .

15 CONTINUOUS WORKING AND OVERTIME

=a> I&; in )e !pini!n !& )e S6O6; i is necessar4; ?4 reas!n !& )e sa&e4 !& )e /!r(s;

!r &!r )e res!rai!n !& inerrupe8 ser,ices !r &!r an4 !)er reas!n /)as!e,er; )eC!nrac!r s)all; /)en s! !r8ere8 carr4 !u )e /!r(s !r an4 p!ri!n )ere!&

c!ninu!usl4 ?4 8a4 an8 ?4 nig) /i)!u e+ra c)arge6

=?> T)e C!nrac!r; i& )e c!nsi8ers )a i %a4 ?ec!%e necessar4 ! cause !,eri%e !

?e /!r(e8 !n sie in !r8er ! c!%plee )e c!nrac ?4 )e 8ae &!r c!%plei!n;

s)all re9ues &!r /rien per%issi!n an8 all!/ &!r suc) c!ningenc4 in )is en8er

price6

=c> I s)all ?e clearl4 an8 8e&iniel4 un8ers!!8 ?4 )e C!nrac!r )a n! clai%s in

respec !& an4 !& )e a?!,e s)all ?e all!/e8 in )e sele%en !& )e Final Acc!un6

16 FLOW THROUGH DRAIN AND CANAL

=a> T)e C!nrac!r s)all a(e e,er4 pracical precaui!n ! a,!i8 iner&erence /i) )e

&l!/ !& s!r% /aer )r!ug) )e 8rain; canal; cul,ers an8 !)er si8e 8rains ec6

An4 sp!il; ru??le; i%?er; ru??is) !r !)er %aerials /)ic) %a4 &all !r ?e ?r!ug)

in! )e 8rain; canal cul,er an8 !)er sie 8rains ec ?4 )e s!r% /aer s)all ?e

re%!,e8 &!r)/i) ?4 )e C!nrac!r6

=?> I& )e S6O6 c!nsi8ers )a an4 e%p!rar4 srucure erece8 in a 8rain is !?srucing

)e &l!/ ! an e+en %!re )an necessar4 %a(ing i lia?le ! cause &l!!8ing in )e

e,en !& a rain s!r%; )e %a4; !ne )!ur a&er n!i&4ing )e C!nrac!r !r )is

represenai,e; e%pl!4 /)ae,er la?!ur an8 plans ! 8e%!lis) suc) srucures a

)e e+penses !& )e C!nrac!r6 An4 e+penses s! incurre8 /ill ?e 8e8uce8 &r!%

an4 su% )a %a4 ?e 8ue ! )e C!nrac!r6

=c> All necessar4 /aer ig) &lu%es; c!&&er8a%s; c)ues an8!r !)er appr!,e8

%e)!8s !& c!nr!lling )e &l!/ !& /aer s)all ?e a8e9uae &!r )is purp!se in )e

!pini!n !& )e S6O6; an8 s)all ?e c!nsruce8 in a rigi8; /!r(%anli(e %anner;

su&&icien ! /i)san8 /aer pressure a is )ig)es le,el6

=8> T)e C!nrac!r s)all ?e resp!nsi?le an8 s)all in8e%ni&4 )e S6O6 agains an4

aci!ns; clai%s; c!ss an8 8e%an8s &!r 8a%ages cause8 ?4 &l!!8ing; slips;

su?si8ences !r !)er &ailures resuling &r!% n!n-c!%pliance ?4 )e C!nrac!r /i)

respec ! )e a?!,e6

17 POLLUTION CONTROL MEASURES AND PREVENTION OF

MOS&UITO BREEDING

T)e sie an8 /!r(ing areas s)all ?e %ainaine8 a )e C!nrac!r7s e+pense in

acc!r8ance /i) )e curren regulai!ns g!,erning p!llui!n c!nr!l %easures an8pre,eni!n !& %!s9ui! ?ree8ing6


17/110

GENERAL Page 0

1 RATE OF EXCAVATION AND DRAIN CONSTRUCTION

T)e C!nrac!r s)all en8ea,!ur ! s! arrange )is /!r( )a )e rae !& 8rain

c!nsruci!n (eeps pace /i) )e rae !& e+ca,ai!n6 !/e,er; )e 8isance !,er /)ic) )eC!nrac!r %a4 e+ca,ae in a8,ance !& )e c!ncreing an8 8rain c!nsruci!n /ill ?e

speci&ie8 &r!% i%e ! i%e ?4 )e S6O66

1! SAFEGUARDING PROPERTIES AD'ACENT TO SITE

=a> W)ere /!r( is un8era(en near !r a8:acen ! ?uil8ings an8 in )e !pini!n !& )e

S6O6; )e sa?ili4 !& suc) ?uil8ings is lia?le ! ?e a&&ece8 as a resul !& )e /!r(;

)e S6O s)all insruc )e C!nrac!r ! )a,e suc) ?uil8ings inspece8 an8 engage

an in8epen8en c!n8ii!n sur,e4!r; appr!,e8 ?4 )e S6O6; ! carr4 !u a

prec!n8ii!n sur,e4 !& suc) ?uil8ings6 T)e prec!n8ii!n sur,e4 is ! rec!r8p)!!grap)ic e,i8ence inclu8ing 8escripi!n !& all e+ising crac(s; 8e&ecs; ec

pri!r ! )e c!%%ence%en !& )e /!r(s6 A prec!n8ii!n sur,e4 rep!r /i) /!

c!%plee ses !& p)!!grap)s s)all ?e su?%ie8 ! )e S6O6 /i)in 1 %!n) &r!%

)e 8ae !& )e sie p!ssessi!n an8 pri!r ! )e c!%%ence%en !& )e /!r(s6 E,er4

ae%p s)all ?e %a8e ! sur,e4 all pre%ises6 E,er4 precaui!n s)!ul8 ?e a(en ?4

)e C!nrac!r ! sur,e4 an8 sa&eguar8 all ?uil8ing !r srucure )a are li(el4 ! ?e

a&&ece8 ?4 )e c!nsruci!n /!r( an8 )e4 s)!ul8 ?e ! )e c!%plee sais&aci!n

!& )e S6O66 T)e C!nrac!r %a4 ?e 8irece8 ?4 )e S6O6 ! e+ca,ae in suc) leng)s

!& e+ca,ai!n as /ill per%i )e leas a%!un ! ?e !pene8 a !ne i%e in !r8er !

%ini%ie )e 8anger !& suc) !pen e+ca,ai!n a&&ecing )e sa?ili4 !& ?uil8ings !r

)eir supp!rs6 T)e ie% !n prec!n8ii!n sur,e4 in )e ?ills !& 9uaniies /!ul8 n!

?e pai8 unless )e S6O6 insrucs )e c!nrac!r ! carr4 !u )e prec!n8ii!n

sur,e46

=?> T)e C!nrac!r /ill ?e )el8 resp!nsi?le &!r 8a%age ! pu?lic; pri,ae !r !)er

?uil8ings an8 pr!peries a8:acen ! )e sie !& )e /!r(s /)ic) is cause8 as a

8irec !r in8irec resul !& )e C!nrac!r7s /!r(6 S)!ul8 )e C!nrac!r &ail !

a(e )e necessar4 precaui!ns; )e S6O6 %a4; a&er gi,ing )e C!nrac!r /en4-

&!ur =#*> )!urs n!ice in /riing; insruc an!)er par4 ! suppl4 la?!ur; %aerial;

plan; i%ple%ens an8 ransp!r ! carr4 !u suc) /!r(6 T)e c!s !& suc) /!r(

/ill ?e c)arge8 ! )e C!nrac!r6

=c> T)e C!nrac!r %us a(e 8ue care ! sa&eguar8 all e+ising ser,ices; suc) as /aer;

se/er !r gas %ains; elecrici4 !r elep)!ne ca?les; cul,ers an8 an4 !)er e+ising

ser,ices6 T)e C!nrac!r /ill ?e re9uire8 ! e+ca,ae rial pis in a8,ance !& )e

W!r(s an8 8eer%ine accurael4 )e p!sii!n !& %ains; pipes; ec6 T)e C!nrac!r

s)all n!i&4 )e S6O6 !& an4 %ains; pipes !r c!n8uis %e /i)in rial pis !r

e+ca,ai!n an8 s)all a(e seps ! supp!r an8 pr!ec )ese ! )e sais&aci!n !&

)e S6O66 T)e C!nrac!r /ill ?e resp!nsi?le &!r an4 8a%age 8!ne ! %ains; ca?les;

cul,ers an8 !)er ser,ices; insi8e !r !usi8e )e e+ca,ai!n as a resul !& ear)

%!,e%en; &aul4 i%?ering; e+cessi,e /eig) !& e+ca,ae8 %aerial ?eing

8ep!sie8 !! cl!se ! !pen renc); lea,ing )e e+ca,ai!n !pen &!r an un8ul4 l!ngperi!8 !r ! an4 &!r% !& sele%en &!ll!/ing ?ac(&illing6


18/110

GENERAL Page

=8> N! /!r( 8!ne ?4 )e S6O6 !r )is /!r(%en n!r )e &ac )a )e i%?ering )as

c!%plie8 /i) )is Speci&icai!n !r re9uire%ens !& )e S6O6 n!r )e appr!,al !&

pr!p!se8 !r c!%plee8 i%?ering ec ?4 )e S6O6 s)all a?s!l,e )e C!nrac!r &r!%

)is resp!nsi?iliies an8 )e /ill ?e re9uire8 ! %a(e g!!8 an4 8a%age cause8 as a

resul !& )e i%?ering &ailing ! gi,e pr!per supp!r ! )e si8es !& )e e+ca,ai!n6

=e> Fur)er%!re; )e C!nrac!r is re9uire8 ! c!n&!r% /i) an4 !)er sa&e4 an8 &ire

regulai!ns )a %a4 ?e inr!8uce8 &r!% i%e ! i%e6

2" METHOD OF WORKING

T)e C!nrac!r is re9uire8 ! carr4 !u )e W!r(s in )e %anner 8eaile8 )erein;

s)!/n !n )e 8ra/ings an8 n!r%all4 a8!pe86 e is a li?er4 ! suppl4 /i) )is en8er

suc) %!8i&icai!n as )e pr!p!ses &!r c!nsi8erai!n an8 s)all see( &!r appr!,al &r!% )e

S6O6 ?e&!re )e is all!/e8 ! appl4 ne/ !r c)ange8 %e)!8s !& c!nsruci!n6

N!/i)san8ing an4 Speci&icai!n; appr!,al !& 8ecisi!n gi,en ?4 )e S6O6 as ! )ecarr4ing !u !& )e W!r(s; )e C!nrac!r /ill ?e /)!ll4 lia?le &!r )e sa&e4 !& )e W!r(s;

?!) e%p!rar4 an8 per%anen an8 &!r )e c!%plei!n !& )e C!nrac ! )e sais&aci!n !&

)e S6O66

21 COFFERDAM AND TEMPORAR# TIDEGATES

=a> An4 pr!p!sal &!r c!&&er8a%s !r e%p!rar4 i8egaes s)all n! ?e i%ple%ene8

/i)!u )e pri!r /rien appr!,al !& )e S6O66

=?> An4 c!&&er8a%s pr!p!se8 /i)in )e e+ising 8rain s)all ?e 8esigne8 suc) )a )e4

are easil4 re%!,a?le !r c!llapsi?le ! ensure )a )e c!&&er8a%s are n! lia?le !

cause &l!!8ing 8uring a rains!r%6

=c> T)e C!nrac!r s)all als! pr!,i8e 8i,ersi!n 8rains /i) e9ui,alen c!n,e4ance

capaciies ! c!%pensae &!r )e l!ss !& &l!/ capaci4 8ue ! )e !?sruci!n !&

&l!/ ?4 )e c!&&er8a%s6

=8> T)e C!nrac!r s)all su?%i 8eails; suc) as )e %e)!8 !& c!nsruci!n; %aerials

use8; /i8); )eig); leng) an8 l!cai!n !& )e pr!p!se8 c!&&er8a%s; e%p!rar4

i8egaes an8 8i,ersi!n 8rains ! )e S6O6 &!r )is appr!,al ?e&!re c!%%encing/!r( !n )e pr!p!se8 c!&&er8a%s; e%p!rar4 i8egaes an8 8i,ersi!n 8rains6

=e> I& a e%p!rar4 i8egae is use8; )e C!nrac!r %us su?%i )e !perai!n pr!ce8ure

! )e S6O6 an8 )e i8egae %us )a,e )e &!ll!/ing &eauresJ-

=i> /aer le,el sens!rs ! pr!,i8e an earl4 /arning signal /)en )e

/aer in )e 8rain reac)es a criical le,el; /)ic) s)all ?e pre-8eer%ine8 ?4

)e S6O6

=ii> an au!%ae8 paging s4se% /i) &i,e pre-pr!gra%%e8 nu%?ers

an8

=iii> #* )!urs %anning ?4 sa&& e%pl!4e8 ?4 )e c!nrac!r6


19/110

GENERAL Page 2

=&> Tesing !& )e /aer le,el sens!rs; au!-paging s4se% an8 i8egae is re9uire8 !

?e carrie8 !u a e,er4 )ree %!n)s 8uring )e enire c!nsruci!n peri!86

22 PRESERVATION OF TREES( VEGETATIONS AND TOP SOIL

All e+ising rees; ,egeai!n an8 !p s!il enc!unere8 !n sie are n! ! ?e

8a%age8 !r re%!,e8 unless !n )e e+presse8 insruci!n !& )e S6O66 W)ere e+ising rees;

,egeai!n !r !ps!il is ! ?e %ainaine8; )e C!nrac!r s)all a(e all necessar4

precaui!ns ! %ainain !r reinsae all ! )e sais&aci!n !& )e S6O6 ill )e en8 !& )e

%ainenance peri!86

23 CONCRETING PROGRAMME

=a> F!r c!ncree an8 rein&!rce8 c!ncree srucures; a &ull4 8eaile8 an8 e+plaine8pr!gra%%e !& c!ncreing %us ?e su?%ie8 an8 appr!,e8 ?4 )e S6O6 ?e&!re /!r(

%a4 pr!cee86

=?> T)e pr!gra%%e s)all in8icae an8!r a(e c!gnisance !& )e %e)!8 !& i%?ering;

le,els !& srus an8 &ra%es; arrange%en !& rein&!rce%en; c!nsruci!n :!ins an8

)e pr!p!se8 plan an8 %e)!8s !& c!ncreing ! ?e use86

24 PROTECTION OF WORK

T)e C!nrac!r s)all; a )is !/n e+pense; pr!ec all /!r( lia?le ! 8a%age ei)er

?4 )e /ea)er !r ?4 )e %e)!8 a8!pe8 &!r )e e+ecui!n !& )e /!r(s re9uiring )e use

!& ce%en6 T)e C!nrac!r7s aeni!n is 8ra/n ! )e ris( !& 8a%age ! srucures 8ue !

e%peraure c)anges an8 )e /ill ?e re9uire8 ! pr!ec all %aerials su?:ec ! 8a%age

&r!% 8irec ra4s !& )e sun6

25 DEMOLITION AND MAKING GOOD

=a> T)e C!nrac!r s)all a(e care /)en 8e%!lis)ing !r cuing a/a4 e+ising /!r(

)a n! a8:acen /!r( is unnecessaril4 8a%age8 in an4 /a46 An4 /!r( s! 8a%age8s)all ?e %a8e g!!8 enirel4 a )e e+pense !& )e C!nrac!r6

=?> Ol8 %aerials s)all n! ?e re-use8 in )e ne/ /!r(; e+cep /)ere s! speci&ie8 !r as

8irece8 ?4 )e S6O66

=c> E+p!se8 ra/ &aces !& e+ising c!ncree !r ?ric(/!r( /)ic) /ill n! )a,e ne/

/!r( ?uil !n )e% s)all ?e %a8e g!!8 /i) ce%en; ren8ering !r ne/ ?ric(/!r(

an8 &inis)e8 ! a nea; sraig); ,erical !r plane sur&ace in )ar%!n4 /i) )e

a8:!ining sur&ace6

26 STRUCTURAL TEST


20/110

GENERAL Page 13

=a> T)e S6O6 %a4 insruc )e C!nrac!r ! %a(e a l!a8ing es !n )e W!r(s !r an4

par )ere!& i& in )e S6O67s !pini!n suc) a es is necessar46

=?> I& )e es s! insruce8 is ! ?e %a8e ?ecause !& cu?e es &ailure; !r )e &inis)e8

/!r( in )e !pini!n !& )e S6O6 is srucurall4 8e&eci,e an8 )ere&!re unaccepa?le

unless pr!,en !)er/ise; )en )e es s)all ?e %a8e a )e C!nrac!r7s e+penseirrespeci,e !& )e es resul6

=c> F!r all srucural /!r(s; )e l!a8 ess s)all ?e 8!ne generall4 in acc!r8ance /i)

56S61136

=8> I& )e resul !& an4 !& )e ess is n! sais&ac!r4; a )e S6O67s insruci!n; )a par

!& )e W!r(s s)all ?e re:ece8 an8 rec!nsruce8 ! c!%pl4 /i) )is Speci&icai!n;

!r !)er appr!,e8 %easures ?e a(en ! %a(e )e /!r(s secure; all a )e

C!nrac!r7s e+pense6 N! e+ensi!n !& i%e s)all ?e eneraine8 in )is c!nneci!n6

27 PREVENTION OF FLOTATION

=a> T)e C!nrac!r is /arne8 )a )e srucures %a4 n! ?e )ea,4 en!ug) ! resis )e

p!ssi?le upli& 8ue ! /aer pressure unil )e srucure; s!il c!,er an8 ?ac(&illing

)a,e ?een c!%plee86 T)e C!nrac!r s)all %a(e a8e9uae arrange%ens ! (eep

)e e+ca,ai!n 8r4 unil )e srucures an8 &illing are c!%plee !r s)all a8!p !)er

appr!,e8 %eans !& ensuring )e sa?ili4 !& )e e%p!rar4 !r per%anen /!r(s6 is

pr!p!se8 %e)!8 %us ?e su?%ie8 ! )e S6O6 &!r appr!,al ?e&!re /!r( is

c!%%ence8 an8 )e s)all pr!,i8e &!r a8e9uae san8?4 plan an8 aen8ance

)r!ug)!u #* )!urs eac) 8a46

=?> F!r pipelines lai8 in /e; /aerl!gge8 !r gr!un8 su?:ec ! &l!!8ing; all necessar4

precaui!ns %us ?e a(en ! pre,en )e &l!ai!n !r %!,e%en !& pipelines

/)e)er la4ing; lai8 !r un8er es6

2 INSPECTION AND REPLACEMENT OF DEFECTIVE WORK

=a> A an4 i%e 8uring !r a&er )e e+ecui!n !& )e W!r(s; )e C!nrac!r s)all; a )e

re9ues !& )e S6O6 an8 /i)in suc) i%e as )e S6O6 s)all na%e; !pen &!r

inspeci!n an4 /!r( c!,ere8 up an8 s)!ul8 )e C!nrac!r re&use !r neglec !c!%pl4 /i) suc) re9ues; )e S6O6 s)all e%pl!4 !)er /!r(%en ! !pen up )e

sa%e6

=?> I& )e sai8 /!r( )as ?een c!,ere8 up in c!nra,eni!n !& )e S6O67s insruci!ns; !r

i& !n ?eing !pene8 up i ?e &!un8 n! in acc!r8ance /i) )e Dra/ings;

Speci&icai!ns an8 5ills !& Buaniies !r )e insruci!ns !& )e S6O6; )e e+penses

!& suc) !pening an8 c!,ering i up again; /)e)er 8!ne ?4 )e C!nrac!r !r suc)

!)er /!r(%en; /ill ?e ?!rne ?4 an8 is rec!,era?le &r!% )e C!nrac!r6

=c> I& )e /!r( )as n! ?een c!,ere8 up in c!nra,eni!n !& suc) insruci!ns !r is

&!un8 ! ?e in acc!r8ance /i) )e sai8 Dra/ings; Speci&icai!ns an8 5ills !&Buaniies !r insruci!ns; )en )e e+penses a&!resai8 /ill ?e ?!rne ?4 )e 5!ar8

an8 ?e a88e8 ! )e C!nrac Su%6


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GENERAL Page 11

=8> W)ene,er in )e !pini!n !& )e S6O6 )e /!r( 8!ne is ina8e9uae !r !& p!!r

/!r(%ans)ip !r in&eri!r %aerials !r in an4/a4 su?-san8ar8; suc) /!r(s /ill ?e

8e%!lis)e8; cu !u !r re%!,e8 &r!% )e W!r(s i%%e8iael4 an8 replace8 /i)

ne/ %aerials !& )e re9uire8 san8ar8 an8 9uali46

2! REINSTATEMENT OF SURFACE

=a> T)e C!nrac!rs /!r( s)all inclu8e )e reinsae%en !& )e &!un8ai!n an8

sur&aces !& an4 r!a8s; (er?s; c4cle rac(s &!!/a4s an8 grass areas 8isur?e8 ?4 )e

e+ca,ai!n /!r( ?!) /i)in an8 !usi8e )e acual renc) area6 T)e C!nrac!r

/ill ?e pai8 &!r )e reinsae%en !& renc)es a )e raes gi,en in )e 5ill !&

Buaniies ?u n! pa4%en /ill ?e %a8e &!r an4 sur&aces 8isur?e8 !usi8e )e

e+ca,ai!n; )e reinsae%en !& all suc) sur&aces ?eing enirel4 )e resp!nsi?ili4

!& )e C!nrac!r6

=?> T)e C!nrac!r s)all all!/ &!r %ac)ine pa,ing in all reinsae%en !& r!a8

sur&aces6 I& 8a%age cause8 ?4 )e C!nrac!r7s /!r( is e+ensi,e; )e s)all n!e )areinsae%en in )e &!r% !& %illing an8 pac)ing !& pre%i+ !n r!a8 sur&aces %a4

?e necessar4 ! sais&4 LTA !n )eir re9uire%en !& )e r!a8 reinsae%en /!r(s6

=c> T)e C!nrac!r s)all als! all!/ &!r )e c!%plee reinsae%en !& all sur&aces

8a%age8 in si8e-a?les; an8 all !)er pri,ae !r G!,ern%en Lan8s ! )e appr!,al !&

)e S6O6 an8 generall4 ! a c!n8ii!n a leas e9ual ! )e !riginal gr!un8 sur&ace

?e&!re )e W!r(s c!%%ence6 T)e C!nrac!r s)all n!e )a &!r ile8 sur&aces;

%ac)ing iles nee8 ! ?e pr!,i8e8 ?4 )i% &!r )e reinsae%en /!r(s6 W)ere

e+ac %ac)ing iles are una,aila?le; )e C!nrac!r s)all n!e )a )e %a4 ?e

re9uire8 ! reile areas ?e4!n8 )is i%%e8iae /!r( sie ! )e &ull sais&aci!n !&

)e S6O6 an8 )e !)er rele,an au)!riies6

3" REINSTATEMENT OF FOUNDATION AND ROAD SURFACE

=a> T)e C!nrac!r /ill ?e re9uire8 ! %ainain in a clean; sa&e an8 i84 sae )e

e%p!rar4 reinsae%en !& renc) an8 !)er 8a%age8 sur&aces in r!a8s as speci&ie8

pre,i!usl4 unil suc) i%e as )e per%anen reinsae%en is carrie8 !u6

=?> Per%anen reinsae%en %us !nl4 ?e carrie8 !u !n receip !& an insruci!n &r!%

)e S6O6 an8 )e reinsae%en /ill )en c!%%ence /i)in 0 8a4s an8 c!%plee8 ass!!n as p!ssi?le6 T)e S6O6 %a4 insruc )e C!nrac!r ! reinsae )e r!a8s in

seci!ns as )e /!r( pr!cee8s6

=c> T)e reinsae%en %us c!%pl4 /i) all )e re9uire%ens !& )e Tra&&ic an8 R!a8

$anage%en; LTA6 An4 /!r( n! c!n&!r%ing in san8ar8 !r e+en ! )e

re9uire%ens !& )e S6O6 !r Seni!r $anager !& Tra&&ic an8 R!a8 $anage%en; LTA

%us ?e i%%e8iael4 re%!,e8 an8 replace8 !r e+en8e86

=8> S)!ul8 )e C!nrac!r &ail ! carr4 !u all )e re9uire8 reinsae%en /!r(s /i)in a

reas!na?le i%e !& )i% ?eing insruce8 ! 8! s!; )e S6O6 %a4 arrange &!r )e pr!per

e+ecui!n !& )e /!r( a )e e+pense !& )e C!nrac!r6

=e> On c!%plei!n !& )e reinsae%en; )e C!nrac!r /ill ?e re9uire8 ! %ainain all

)e r!a8 sur&aces ec6 a&&ece8 &!r )e &ull peri!8 !& )e C!nrac an8 De&ecs


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GENERAL Page 1#

Lia?ili4 Peri!86 All &auls; sele%ens ec6 8e,el!ping /i)in )is peri!8 %us ?e

%a8e g!!8 i%%e8iael4 up!n receip !& an insruci!n &r!% )e S6O66

31 NOMINATED SUB-CONTRACTOR AND OTHER SUPPLIER

=a> W)ere cerain /!r(s !& suppl4 an8 ereci!n !r &i+ing are c!ncerne8; N!%inae8

Su?-C!nrac!rs %a4 ?e e%pl!4e86 In )is e,en a Pri%e C!s Su% /ill &!r% par

!& )e C!nrac an8 )e C!nrac!r /ill ?e insruce8 ! place !r8ers !r ener in!

Su?-C!nracs /i) )e N!%inae8 Su?-C!nrac!r6

=?> T)e C!nrac!r s)all gi,e Su?-C!nrac!rs an8 !)ers /!r(ing !n )e Sie all

in&!r%ai!n reas!na?l4 necessar4 ! ena?le )e% ! se !u pr!perl4 an8 e+ecue

)eir /!r(6 T)e C!nrac!r s)all pr!,i8e ! N!%inae8 Su?-C!nrac!rs all

rele,an c!pies !& Speci&icai!ns an8 C!n8ii!ns !& C!nrac ! ena?le )e% !

c!%pl4 /i) all )e re9uire%ens un8er )e %ain C!nrac s! &ar as i relae ! su?-c!nrac /!r(s6

=c> T)e C!nrac!r s)all pr!,i8e general aen8ance up!n all Su?-C!nrac!rs;

Specialiss an8 !)er e+ecuing relae8 /!r(6 T)e C!nrac!r s)all pr!,i8e suc)

&aciliies as )e S6O6 %a4 c!nsi8er reas!na?le an8 a&&!r8 )e% use !& erece8

sca&&!l8ing /)ic) )e4 %a4 re9uire &!r )e purp!se !& carr4ing !u )eir /!r(;

suppl4 )e% /i) la?!ur an8 ac(le &!r unl!a8ing; geing in; )!ising an8

8isri?uing )eir %aerials; all!/ )e% use !& s!rage &!r )eir %aerials; all!/

)e% use !& s!rage &!r )eir %aerials an8 space &!r /!r(ing s! )a )eir /!r(s

%a4 pr!cee8 regularl4 /i) )e general pr!gress !& )e W!r(s6


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$ATERIAL Page 1'

PART II - MATERIAL

32 STANDARD OF MATERIAL

=a> As &ar as is pracica?le an8 unless !)er/ise sae8; all %aerials use8 in )e W!r(s

s)all c!%pl4 /i) )e curren Singap!re San8ar8 Speci&icai!n !r e9ui,alen 9uali4san8ar8s6 W)ene,er re&erence is %a8e ! Nai!nal San8ar8s an8 Tra8e Na%es;

!)er appr!,e8 san8ar8s /)ic) ensure an e9ual !r )ig)er 9uali4 !& pr!8uc !r

/!r(%ans)ip )an )e speci&ie8 /ill als! ?e accepe86

=?> W)ere,er an4 %aerial re9uire8 &!r )e W!r(s is %anu&acure8 in )e Repu?lic !&

Singap!re; )e 5!ar8 /ill gi,e pre&erence ! )e use !& )a %aerial in lieu !& an

e9ui,alen i%p!re8 %aerial pr!,i8e8 )a; in )e !pini!n !& )e S6O6; )e %aerial is

c!nsi8ere8 sais&ac!r4 /i) regar8 ! 9uali4; ec6; an8 )e price is e9ual !r l!/er

)an )e e9ui,alen i%p!re8 %aerials6 In an4 case !& 8!u?; )e C!nrac!r s)!ul8

c!nsul )e Drainage Depar%en6

=c> W)ere an appr!,e8 San8ar8 is 9u!e8 in )is 8!cu%en; )e laes san8ar8 /ill

appl46

=8> In all cases /)ere %aerials are speci&ie8 ! c!%pl4 /i) Singap!re San8ar8s; )e

C!nrac!r s)all; i& re9uire8; !?ain &r!% )e %anu&acurer an8 suppl4 ! )e S6O6s

represenai,e; )e appr!priae ceri&icaes !& c!%pliance /i) )e San8ar8s6

N!/i)san8ing )e a?!,e; es s)all ?e carrie8 !u as an8 /)en 8irece8 ?4 )e S6O6

in acc!r8ance /i) )e rele,an San8ar8s6

=e> W)ere %aerials are speci&ie8 ! Singap!re San8ar8 Speci&icai!n !r e9ui,alen

9uali4 san8ar8s an8 )e appr!priae ceri&icaes !& c!%pliance are n! a,aila?le; )e

C!nrac!r s)all arrange &!r )e esing !& sa%ples6 Full ess /ill ?e carrie8 !u in

acc!r8ance /i) )e Speci&icai!n ! 8e%!nsrae c!%plee c!%pliance6 Tess %a4

?e carrie8 !u ?4 )e accre8ie8 la?!ra!r4 !n ?e)al& !& )e C!nrac!r ?u )e c!s !&

sa%ples; ransp!r esing an8 e,er4 !)er e+pense s)all ?e ?!rne ?4 )e C!nrac!r6

33 SAMPLE OF MATERIAL

=a> Sa%ples !& aggregaes; ?ric(s; iles an8 all %aerials re9uire8 ?4 )e S6O6 %us ?e

su?%ie8 &!r appr!,al !n sie ?e&!re an4 ?ul( !r8ers are place86

=?> F!ll!/ing appr!,al !& sa%ples; ?ul( 8eli,eries %a4 a(e place an8 )ese %us a all

i%es ?e e9ual !r superi!r in 9uali4 )an )e appr!,e8 sa%ples6 An4 %aerials

8eli,ere8 8uring )e pr!gress !& )e W!r(s an8 &!un8 ! ?e in&eri!r ! )e appr!,e8

sa%ples !r unsais&ac!r4 in an4 !)er respec %us ?e i%%e8iael4 an8 c!%pleel4

re%!,e8 &r!% )e sie !r sies6 T)e C!nrac!r %a4 als! ?e re9uire8 ! pr!8uce pr!!&

!& )e 8esinai!n !& c!n8e%ne8 %aerials re%!,e8 &r!% )e sies6

34 TIMBER

=a> All i%?er use8 &!r i%?ering !& e+ca,ai!n !r s)!ring %us ?e !& a8e9uae seci!n

an8 9uali46 Ti%?er use8 in renc)es ! supp!r )e &ace !& )e e+ca,ai!ns %us ?e


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$ATERIAL Page 1*

a leas $e8iu% ar8/!!8 as in acc!r8ance /i) )e $ala4sian Gra8ing Rules &!r

$ala4sian Ti%?ers6

=?> T)e i%?er use8 in s)uering %us ?e !& s!un8; /ell-seas!ne8 i%?er an8 &ree &r!%

s)a(es; /iss !r !)er 8e&ecs6 Pl4/!!8 lining &!r s)uering %us ?e !& an appr!,e8

)ic(ness an8 4pe !& i%?er; resin ?!n8e8 an8 /aer repellen6

=c> Ti%?er use8 in carpenr4 an8 :!iner4 %us ?e s!un8; )!r!ug)l4 seas!ne8 an8 &ree

&r!% 8e&ecs6 T)e i%?er s)all )a,e a sraig) uni&!r% grain an8 ?e !& an appr!,e8

species &!r eac) purp!se6

35 TIMBER PRESERVATIVE

All i%?er )ar8?!ar8; ec6 ! ?e per%anenl4 inc!rp!rae8 in! )e W!r(s %us ?e

pressure i%pregnae8 /i) an appr!,e8 preser,ai,e6 T)e preser,ai,e %us ?e !& a 4pe

resisan ! all &!r%s !& r!; er%ie an8 insec aac(6

36 BAKAU PILE

=a> 5a(au piles s)all ?e g!!8; s!un8; sraig) piles /i) &res) unin:ure8 ?ar( an8 !&

reas!na?l4 uni&!r% sie )r!ug)!u6 T)e4 s)all n! ?e less )an 0%% in 8ia%eer

a )e larger en8 an8 .%% a is )inner en86 Suc) %easure%ens s)all n! ?e !,er

(n!?s an8 pr!u?erances6 T)e per%issi?le 8e,iai!n !& )e a+is !& )e pile &r!% )e

sraig) line :!ining )e cenres !& )e /! en8s s)all n! ?e %!re )an 1%%6

=?> All ?a(au piles s)all ?e inspece8 an8 appr!,e8 ?4 )e S6O6 ?e&!re ?eing use86

5a(au piles )a )a,e ?een re:ece8 s)all ?e re%!,e8 &r!% sie i%%e8iael46 T)e

piling s)all ?e carrie8 !u ?4 !pera!rs )!r!ug)l4 e+perience8 in )eir ra8e an8

s)all ?e carrie8 !u in acc!r8ance /i) )e insruci!ns !& )e S6O66

=c> Piles s)all ?e 8ri,en ,ericall4 in a sraig) line; paricularl4 s9uare8 &r!% )e &ace

!& )e /!r( an8 &ree &r!% 8a%age6 T)e %!n(e4 use8 s)all ?e #33 (g =%ini%u%>

in /eig)6 T)e %!n(e4 s)all 8r!p &r!% a )eig) !& 1% %ini%u% ?u n! e+cee8ing

16%6 T)e acual )eig) !& )e 8r!ps s)all ?e as 8irece8 ?4 )e S6O66

=8> Inc!rrecl4 !r ?a8l4 8ri,en piles an8 piles 8a%age8 8uring 8ri,ing s)all ?ee+race8 an8 replace8 !r else 8uplicae8 all a )e C!nrac!r7s !/n e+pense6

=e> F!r ?a(au piles l!nger )a % ?u n! e+cee8ing 13% leng); !nl4 !ne %il8 seel

splice :!in s)all ?e all!/e8 ! e+en8 )e piles ! )e re9uire8 leng)6 N! splicing

s)all ?e all!/e8 &!r ?a(au piles n! e+cee8ing % in leng)6 Splicing s)all ?e ?4

%eans !& a %il8 seel c!llar !& 113%% inernal 8ia%eer an8 *33%% in leng)6 T)e

c!llar s)all ?e &a?ricae8 &r!% a single gal,anise8 Seel S)ee !& SWG 1# =#6.*%%>

)ic(ness /i) 1%% 8ia%eer %il8 seel ?ar sru a )e cenre !& )e c!llar an8 all

s)all ?e /ell c!ae8 /i) ?iu%in!us pain an8 appr!,e8 ?4 S6O6 ?e&!re ?eing pu !

use6


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$ATERIAL Page 1

37 CEMENT

Ce%en %us ?e !r8inar4 P!rlan8 ce%en !& appr!,e8 %anu&acure an8 s)all

c!%pl4 /i) S6S6#. - Speci&icai!n &!r P!rlan8 Ce%en =!r8inar4 an8 rapi8-)ar8ening>6 I

%us ?e !& an appr!,e8 ?ran8 /i) pre&erence ?eing gi,en &!r ce%en !& l!cal %anu&acure6

W)ere )ig) alu%ina ce%en is speci&ie8; i s)all c!%pl4 /i) 56S6 216 C!%pressi!n essinsea8 !& ensile ess s)all ?e %a8e !n ce%en-san8 cu?es in !r8er ! 8eer%ine )e

sreng) !& ce%en6

3 CONCRETING AGGREGATE

=a> GENERALLM

=i> $aerials use8 as aggregaes %us ?e !?aine8 &r!% a

s!urce (n!/n ! pr!8uce aggregaes sais&ac!r4 &!r c!ncree an8 %us ?e

c)e%icall4 iner; sr!ng; )ar8; 8ura?le; !& li%ie8 p!r!si4; an8 &ree &r!%a8)ering c!as !& cla4 lu%ps; c!al; c!al resi8ues; !rganic !r !)er i%puriies

)a %a4 i%pair )e sreng) !r 8ura?ili4 !& )e c!ncree6 Aggregaes %us

?e ese8 in acc!r8ance /i) )e re9uire%ens !& S6S6'1 an8 )e resuls !&

suc) ess %us ?e as )ereina&er speci&ie8; )e percenage ?eing ?4 /eig)

unless )e c!ne+ in8icaes !)er/ise6

=ii> In )e 8esign !& c!ncree %i+es; )e gra8ing !& )e

c!%?ine8 aggregaes s)all la4 /i)in !ne !& )e !nes A; 5 !r C !& R!a8

N!e * issue8 ?4 )e R!a8 Researc) La?!ra!r4; Depar%en !& Scieni&ic

In8usrial Researc); 6K66

=iii> T)e S6O6 %a4 !r8er )e gra8ing !& )e aggregaes !

?e ,arie8 &r!% )a speci&ie8 a?!,e an8 )e C!nrac!r /ill n! ?e enile8 !

an4 e+ra pa4%en &!r suc) ,ariai!n6

=?> FINE AGGREGATE

=i> Fine aggregae %us ?e clean; naural san8 !r san8 8eri,e8 ?4 crus)ing gra,el !r

s!ne an8 %us ?e &ree &r!% c!agulae8 lu%ps6 San8 8eri,e8 &r!% s!ne

unsuia?le &!r c!arse aggregae %us n! ?e use8 as &ine aggregae6

=ii> T)e s!8iu% )48r!+i8e es &!r !rganic i%puriies s)all s)!/ a c!l!ur n! 8eeper

)an )a !& )e san8ar8 s!lui!n6 T)e a%!un !& &ine paricles; as

asceraine8 ?4 )e la?!ra!r4 se8i%enai!n %e)!8; s)all n! e+cee8 13

&!r crus)e8 s!ne san8 n!r * &!r naural san86 T)e &iel8 se8i%enai!n es

s)all 4iel8 a percenage cla4-plus-&ine-sil n! e+cee8ing 13 &!r naural

san86 T)ese ess are ! ?e c!n8uce8 in acc!r8ance /i) S6S60'6

=iii>I& )e &ine aggregae 8!es n! c!n&!r% ! )e prescri?e8 san8ar8s; )e S6O6 %a4

re:ec i !r !r8er )a i ?e /as)e8; screene8 an8 gra8e8 unil i %ees /i)

)is appr!,al6

=i,>T)e gra8ing !& &ine aggregae &!r c!ncree /!r( s)all c!%pl4 /i) )e

re9uire%ens !& S6S6'16


26/110

$ATERIAL Page 1.

=,> T)e &ine aggregae %us ?e /i)in )e li%is !& gra8ing !ne # &!r Gra8e '3 an8

Gra8e # c!ncree an8 /i)in )e li%is !& gra8ing !nes 1 ' &!r Gra8e #3

an8 Gra8e 1 c!ncree6 T)e gra8ing !nes are )!se speci&ie8 in Ta?le # !&

S6S6'16 T)e use !& all-in aggregae /ill n! ?e per%ie86

=,i>T)e C!nrac!r is re9uire8 ! pr!,i8e an appr!,e8 4pe !& insru%ene9uip%en&!r %easuring; )e %!isure c!nen in )e &ine aggregae =san8> &!r )e

c!ncree6 C)ec( !n )e %!isure c!nen !& san8 s)!ul8 ?e %a8e a leas

!nce a 8a4 ?e&!re c!ncreing6 T)e a%!un !& /aer ! ?e a88e8 ! )e

c!ncree %i+ s)!ul8 ?e a8:use8 acc!r8ingl46

=c> COARSE AGGREGATE

=i> C!arse aggregae %us ?e crus)e8 !r uncrus)e8

gra,el !r crus)e8 s!ne an8 %us ?e &ree &r!% 8ec!%p!se8 s!ne; cla4; ear)

!r !)er 8eleeri!us su?sances6 T)e pieces %us ?e angular; !r e+cep &!r

c!ncree sur&aces su?:ec ! a?rasi!n r!un8e8 in s)ape an8 s)all )a,egranular !r cr4salline !r s%!!) =?u n! glass4> n!n-p!/8er4 sur&aces6

Fria?le; &la(4 an8 la%inae8 pieces; %ica an8 s)ale can !nl4 ?e presen in

suc) 9uaniies as n! ! a&&ec a8,ersel4 )e sreng) an8 8ura?ili4 !& )e

c!ncree6

=ii> T)e %a+i%u% sie !& c!arse aggregae &!r Gra8es '3;

#; #3; an8 1 c!ncree s)all ?e #3%%6 T)e gra8ing !& c!arse aggregae &!r

c!ncree /!r( s)all c!%pl4 /i) )e re9uire%ens !& S6S6'16

3! WATER

=a> Waer &!r %a(ing c!ncree an8 ce%en %!rar %us ?e clean; &res)

an8 &ree &r!% !rganic !r in!rganic %aer in s!lui!n !r suspensi!n in suc) a%!uns

)a %a4 i%pair )e sreng) !r 8ura?ili4 !& )e c!ncree6 Waer %us ?e !?aine8

&r!% a pu?lic suppl4 /)ere p!ssi?le an8 can ?e a(en &r!% an4 !)er s!urce !nl4

a&er c!%pre)ensi,e esing an8 anal4sis !& sa%ples an8 )e /rien appr!,al !& )e

S6O66 N! sea-/aer !r /aer &r!% e+ca,ai!n can ?e use86

=?> Onl4 /aer !& appr!,e8 9uali4 can ?e use8 &!r /as)ing !u

s)uering; curing c!ncree; esing /aer reaining srucures an8 si%ilar purp!ses6

4" REINFORCEMENT

*361 GENERAL

=a> T)e rein&!rce%en s)all ?e c!%pl4ing /i) S6S6#; S6S61 !r seel &a?ric

c!%pl4ing /i) S6S6'#6

=?> W)ere )e leer T is use8 in )e srucural 8eailing; i s)all %ean )a

suc) rein&!rce%en s)all ?e )ig)-4iel8 ?ars )a,ing a %ini%u%c)aracerisic sreng) !& *.3N%%#unless !)er/ise sae86


27/110

$ATERIAL Page 10

=c> T)e leer R; /)ere use8 s)all in8icae )a suc) rein&!rce%en s)all ?e

%il8 seel ?ars /i) a %ini%u% c)aracerisic sreng) !& #3N%% #6

=8> Rein&!rce%en ?ar n! 8esignae8 ?4 an4 leer s)all ?e )ig) 4iel8 )a,ing a

%ini%u% c)aracerisic sreng) !& *.3N%%#6

=e> Nei)er )e n!%inal sie n!r )e leer !& a ?ar s)all ?e less )an )e sie !rleng) s)!/n !n )e 8ra/ings6

41 STRUCTURAL STEEL

Srucural seel %e%?ers s)all c!%pl4 /i) )e re9uire%ens !& 56S6*'.3 an8 ?e !&

uni&!r% sies an8 san8ar8 cr!ss seci!n6

42 TESTING OF STEEL

=a> T)e C!nrac!r s)all arrange &!r )e %anu&acurer ! suppl4 8irec ! )e S6O6 a

ceri&icae saing )e pr!cess !& %anu&acure an8 a es s)ee signe8 ?4 )e

%anu&acurer gi,ing )e resuls !& eac) !& )e %ec)anical ess applica?le ! an8

)e 8escripi!n !& )e %aerials purc)ase8 an8; i& an8 /)en )e re9uire8; !& )e

c)e%ical anal4sis als! an8 all ess speci&ie8 in )e rele,an San8ar8s6

=?> T)e rein&!rce%en s)all ?e ese8 ?ase8 !n )e &re9uenc4 as s)!/n ?el!/6

Seleci!n !& es pieces s)all ?e %a8e ?4 )e S6O66 T)e C!nrac!r s)all ?ear all

c!ss in,!l,e8 in %a(ing )ese ess6

T4pe !& Tes Fre9uenc4 !& Tes

C)e%ical Tes One sa%ple &!r e,er4 33T!n !r re?ars !r par )ere!&

Tensile Tes One sa%ple &!r e,er4 #T!n !& re?ars !r par )ere!&

5en8Re-?en8 Tes One sa%ple &!r e,er4 3 T!n !& re?ars !r par )ere!&

43 DOWEL BAR

$il8 seel 8!/el ?ars s)all c!nsis !& seel c!%pl4ing /i) )e re9uire%ens !&

56S6*'.36 T)e4 s)all ?e sraig) #3%% 8ia%eer; *3%% l!ng an8 &ree &r!% ?urne8 e8ges

!r !)er irregulariies6 T)e ?ars are ! ?e inclu8e8 in )e /!r(s /)ere in8icae8 !n )e8ra/ings !r 8irece8 ?4 )e S6O66 In general; )al& )e ?ar s)all ?e c!nnece8 in !n !ne si8e

!& a ?rea( :!in an8 )e !)er )al& paine8 /i) ?iu%en ?e&!re c!ncreing in !n )e sec!n8

si8e !& )e ?rea( :!in6

44 WATERPROOF PAPER

Waerpr!!& ?uil8ing paper s)all c!%pl4 /i) 56S61#16 F!r r!a8/!r(s; i s)all ?e

Class 56

45 EXPANSION 'OINTING MATERIAL


28/110

$ATERIAL Page 1

E+pansi!n :!ining %aerial s)all ?e supplie8 in )e re9uire8 )ic(ness an8 /i8)s6

N! %uli-la4er :!ins /ill ?e per%ie86 T)e %aerial s)all c!%prise an appr!,e8 cellular

%aerial /i) a )ig) 8egree !& rec!,er4 a&er crus)ing an8 )e %aerial s)all ?e )!r!ug)l4

i%pregnae8 /i) a suia?le preser,ai,e6

46 'OINT SEALING COMPOUND

@!ins s)all ?e seale8 /i) a ru??er-?iu%in!us c!%p!un8 /)ic) s)all ?e !& an

appr!,e8 4pe c!%pai?le in all respecs /i) )e :!ining %aerial6 !ri!nal :!in seals

%a4 ?e %a8e /i) a )! run 4pe !& sealer /)ile ,erical :!ins s)all ?e %a8e /i) a caul(e8;

!r a8)esi!n 4pe sealing srip6 Full 8eails !& )e %aerials an8 )e %anu&acurers

rec!%%en8ai!ns &!r applicai!n s)all ?e su?%ie8 ! )e S6O6 &!r appr!,al6

47 WATER BAR

=a> Waer ?ars s)all ?e !& an appr!,e8 4pe an8 s)all ?e !?aine8 &r!%

an appr!,e8 %anu&acurer6 T)e4 s)all ?e !& a naural !r s4n)eic ru??er; e+ru8e8

P6 T)e ru??er !r P6 LIFTING

T)e C!nrac!r is re9uire8 ! su?%i ! )e S6O6 &!r appr!,al pri!r ! )e

c!nsruci!n; )is pr!p!sal &!r )an8ling an8 li&ing )ese precas unis6 is pr!p!sal

s)all inclu8e 8eaile8 8ra/ings an8 calculai!ns ceri&ie8 ?4 a Pr!&essi!nal

Engineer ! ?e engage8 ?4 )i%6 T)e li&ing arrange%en s)all ?e s! 8esigne8 s!

)a n! un8ue sresses /ill ?e in8uce8 !n )e precas unis6 I& )e li&ing

arrange%ens are s! 8esigne8 )a a88ii!nal rein&!rce%ens are re9uire8 ! ?e

pr!,i8e8 in )e precas unis s)!/n in )e C!nrac Dra/ings; )e C!nrac!r s)allpr!,i8e )e a88ii!nal rein&!rce%ens re9uire8 ! )e appr!,al !& )e S6O6 an8 )e

/ill n! ?e all!/e8 ! clai% &!r )e a88ii!nal rein&!rce%ens pr!,i8e86 T)e

C!nrac!r s)all a(e n!e !& )e a?!,e an8 s)all all!/ in )is raes ! c!%pl4 /i)

)e re9uire%ens6

=?> @OINTS

T)e C!nrac!r s)all ensure )a all &aces !& )e precas unis /)ic) a8:!in

8uring c!nsruci!n s)all ?e !& suc) &!r% an8 &inis) )a )e ineri!r sur&ace !& )e

precas unis s)all ?e suc) as /ill &aciliae )e asse%?l4 !& )e precas unis6

nless !)er/ise sae8; )e :!in ?e/een a8:acen precas seci!ns %a4 ?e are?ae8 :!in6

=c> TOLERANCES


29/110

$ATERIAL Page 12

T)e C!nrac!r s)all ensure )a )e acual inernal 8i%ensi!ns !& a precas

seci!n s)all n! 8i&&er &r!% )e 8esignae8 8i%ensi!n ?4 %!re )an %%; )e

acual )ic(ness ?4 %!re )an plus %% !r %inus '%% an8 )e acual leng) ?4

%!re )an .%%6

=8> WORK$ANSIP AND FINIS

T)e C!nrac!r s)all ensure )a )e c!ncree s)all ?e 8ense an8 )ar8 an8

su?saniall4 &ree &r!% c)ippe8 e8ges; laiance an8 sur&ace r!ug)ness; )e precas

seci!ns s)all ?e &ree &r!% &racures an8 crac(s /i8er )an 361%% an8 resi8ual

es crac(s /i8er )an 363%%; an8 &r!% !)er 8e&ecs arising &r!% &aul4 %aerial

!r &aul4 %e)!8s !& %anu&acure6 Dens n! e+cee8ing '%% 8eep an8 ?ulges n!

e+cee8ing '%% )ig) s)all ?e per%ie8 pr!,i8e8 )a )e4 8! n! e+en8 !,er )e

sur&ace &!r a 8isance greaer )an /ice )e )ic(ness !& c!ncree /)ere )e4

!ccur6

=e> $ARKING

T)e 8ae !& %anu&acure !& )e precas unis s)all ?e clearl4 sencille8 !n

)e ineri!r !& eac) uni near )e !p6

=&> LOAD TEST

E+cep in cases /)ere )e 8esign is 8!ne ?4 )e 5!ar8 an8 )e precasing is

8!ne un8er )e super,isi!n !& )e S6O6 !r /)ere )ere are n! San8ar8s

Speci&icai!ns a,aila?le; &r!% e,er4 /en4 unis !& )e precas seci!ns !& eac)

4pe an8 sie %anu&acure8; )e S6O6 %a4 selec !ne uni &!r l!a8 es6 T)e l!a8

es /ill ?e carrie8 !u as 8irece8 ?4 )e S6O6 an8 in acc!r8ance /i) )e

re9uire%ens as spel in )e C!nrac Speci&icai!ns6

=g> CASTING MARD

T)e C!nrac!r s)all als! n!e )a )e is re9uire8 ! &in8 )is !/n casing

4ar8 a )is !/n c!s6 T)e C!nrac!r s)all )en n!i&4 )e S6O6 !& )e l!cai!n !& )is

casing 4ar86 T)e S6O6 an8 )is represenai,es s)all )a,e access ! )e casing 4ar8

a all reas!na?le )!urs6 T)e C!nrac!r s)all %a(e arrange%en &!r )e esing !&

)e c!ncree cu?es &!r )e precas unis in acc!r8ance /i) )e pr!ce8ure as

sipulae8 in )e San8ar8 Speci&icai!n &!r Drainage W!r(s6 T)e c!s !& %a(ing;

curing; ransp!ring an8 esing !& all )e cu?es s)all ?e ?!rne ?4 )e C!nrac!r6

=)> DEFECTI LAMING OF NITS

T)e C!nrac!r s)all ensure )a )e precas unis are lai8 ! )e c!rrec line

an8 le,el6 T)e C!nrac!r s)all ?e re9uire8 ! a(e !u an8 a8:us )e precas unis

a )is !/n c!s i& )ere is an4 %!,e%en !r sele%en !& )e unis 8uring an8 a&er

c!nsruci!n6 T)e C!nrac!r is ! all!/ in )is raes &!r ce%en gr!uing !r


30/110

$ATERIAL Page #3

e9ui,alen appr!,e8 &illing !& )e gaps ?e/een )e a8:acen precas unis ! )e

&ull sais&aci!n !& )e S6O66

=:> $ETOD OF CONSTRCTION

T)e C!nrac!r s)all ?e re9uire8 ! su?%i a 8eaile8 8escripi!n !& )e%e)!8 !& c!nsruci!n !& )e precas unis inclu8ing )e 4pe !& %ac)iner4 ! ?e

use8 &!r )e appr!,al !& )e S6O6 ?e&!re )e c!%%ence%en !& /!r(6

=(> SA$PLES

T)e C!nrac!r /ill ?e re9uire8 ! suppl4 sa%ples !& all precas c!ncree

unis &!r )e appr!,al !& )e S6O66 Onl4 /)en appr!,al )as ?een gi,en %a4 )e

suppl4 !& )e unis a(e place an8 an4 unis supplie8 /)ic) are in&eri!r ! )e

appr!,e8 sa%ple /ill ?e re:ece86

4! PRESTRESSED CONCRETE SLAB

=a> T)e presresse8 c!ncree sla?s re9uire8 as c!,er sla?s ! access

c)a%?ers ec6 s)all ?e precas c!ncree unis6

=?> T)e sla?s s)all ?e 8esigne8 ! carr4 a superi%p!se8 li,e l!a8 !&

13(N%#/)ere insallai!n is !usi8e )e carriage/a4s =%e8iu%> an8 $inisr4 !&

Transp!r =6K6> l!a8ing &!r carriage/a4 8esign =)ea,4>6 Calculai!ns an8 8esign

&!r eac) 4pe !& sla? s)all ?e su?%ie8 an8 appr!,e8 ?4 )e S6O6 ?e&!re casing

c!%%ences6

=c> Sla?s s)all ?e su?:ece8 ! es ?e&!re 8eli,er4 ! sie; !ne sla? ?eing

su?:ece8 ! es &!r eac) ?ac) !r 4pe !& sla?s !& # !r less %a8e6 T)e es unis

selece8 ?4 )e S6O6 s)all ?e su?:ece8 ! a p!in l!a8 ?en8ing es; )e l!a8 ?eing

su&&icien ! in8uce a ?en8ing %!%en n! less )an !ne an8 a )al& i%es )e 8esign

%!%en6 One sla? !& eac) sie %a8e s)all ?e su?:ece8 ! a es ! &ailure !

ascerain )e uli%ae ?en8ing %!%ens6

5" CONCRETE PIPE )ORDINAR# PORTLAND CEMENT* WITHOUT

LINING

=a> C!ncree pipes s)all ?e ! )e appr!,al !& )e S6O6 !?aine8 &r!% an appr!,e8

%anu&acurer an8 %a8e &r!% rein&!rce8 Or8inar4 P!rlan8 Ce%en C!ncree6 T)e4

s)all in general c!%pl4 /i) S6S61' an8 s)all ?e ese8 as 8escri?e8 )erein6

Dra/ings an8 8eails !& )e pr!p!se8 rein&!rce%en s)all ?e su?%ie8 &!r )e

S6O67s appr!,al6

=?> In paricular; )e )48raulic pr!!& es s)all ?e ! S6S61' an8 s)all ?e applie8 !n 1

in e,er4 3 !r par !& 3 pipes !& )e sa%e n!%inal inernal 8ia%eer &!r all sies

an8 classes !& pipes6

=c> San8ar8 pipes; Class L; $ an8 pipes s)all ?e capa?le !& ?eing :!ine8 !ne ! )e

!)er in )e n!r%al %anner6


31/110

$ATERIAL Page #1

=8> N! pipes s)all ?e 8ispac)e8 &r!% )e place !& %anu&acure unil

)e appr!,al !& )e S6O6 )as ?een gi,en &!ll!/ing /)ae,er ess !r inspeci!n )e

S6O6 %a4 )a,e calle8 &!r6 N!/i)san8ing )e appr!,al !& )e S6O6 ! pipes a )e

place !& %anu&acure; )e C!nrac!r /ill sill ?e )el8 resp!nsi?le &!r an4 &auls

&!un8 !n )e pipes !n sie6

=e> In !r8er ! per%i )e use !& )e sa%e %!ul8s &!r 8i&&eren classes !& pipe

speci&ie8; inernal 8ia%eers greaer )an )a speci&ie8 /ill ?e per%ie86 T)e

inernal 8ia%eer !& )e &inis)e8 pipes s)all n! ?e %!re )an #%% less )an )e

8ia%eer sae8 in )e 56B66

51 SAND

T)e san8 &!r ce%en %!rar ec6 s)all ?e as 8escri?e8 &!r &ine aggregae e+cep )a

i s)all ?e &ine san8 c!%pl4ing /i) S6S6'16

52 GRANULAR MATERIAL

Granular %aerial &!r pipe ?e88ing ec6; s)all ?e !& appr!,e8 san8; laerie !r !)er

suia?le %aerial; &ree !& all cla4 lu%ps an8 s!nes a?!,e a #%% gauge6

53 &UARR# RID

L!cal s!ne re:ecs s)all ?e n! less )an 0%% !r %!re )an 133%% gauge an8

s)all ?e !& a 4pe appr!,e8 ?4 )e S6O66

54 STONE FOR PITCHING

S!ne &!r pic)ing s)all ?e !& appr!,e8 granie6 N! ?l!c( s)all e+cee8 363'% ' in

,!lu%e an8 is greaes 8i%ensi!n s)all n! e+cee8 *3%%6

55 HARDCORE

ar8c!re s)all c!nsis !& ?r!(en s!ne; ?ric(; !r !)er appr!,e8 )ar8 %aerial6 Is)all ?e &ree &r!% cla4; 8us an8 !)er 8eleeri!us %aer an8 s)all n! c!nain pieces

e+cee8ing 13%% !r less )an .3%% gauge6

56 BRICK

=a> C!%%!n ?ric(s s)all ?e !& a san8ar8 sie; !& e,en s)ape; )ar8; /ell ?urn; an8

%ac)ine %a8e presse8 ?ric(s /i) rue arrises6

=?> Facing ?ric(s s)all ?e !& a san8ar8 sie; uni&!r% in 8i%ensi!n; s)ape an8 c!l!ur

an8 s)all ?e )ar8; /ell ?urn; presse8 ?ric(s6 T)e 8eli,ere8 ?ric(s s)all ?e &ur)er

selece8 ?4 )an8 pic(ing !n sie ! re:ec %iss)apen; un8er?urn !r !,er?urn

?ric(s6 N! pa4%en /ill ?e %a8e &!r re:ece8 ?ric(s al)!ug) suia?le re:ecs %a4

?e use8 as c!%%!ns6


32/110

$ATERIAL Page ##

=c> Engineering ?ric(s s)all ?e !?aine8 &r!% appr!,e8 %anu&acurers6 T)e4 s)all ?e

)an8 selece8 s! )a )e4 /ill in general c!n&!r% ! S6S613' ?u )e %ini%u%

all!/a?le a,erage c!%pressi,e sreng) s)all n! ?e less )an '1 N%%#6 T)e4 s)all

?e )e ?es !& )eir respeci,e (in8s; s!un8; )ar8; s9uare %a8e; /ell ?urn

)r!ug)!u; regular in sie an8 s)ape; /i) g!!8 &aces an8 clean arrises an8 &ree&r!% li%e; c)al(; pe??les; s)ell !r !)er e+rane!us %aer an8 !)er 8e&ecs6

=8> 5e&!re an4 ?ric(s are !r8ere8; sa%ples !& eac) (in8 !& ?ric( s)all ?e su?%ie8 !

)e S6O6s represenai,e &!r appr!,al6

=e> 5ric(s s)all ?e care&ull4 )an8le8 &r!% l!rries an8 sac(e8 ?4 )an8 an8 all ?ric(s

?r!(en; c)ippe8; crac(e8 !r /i) ?r!(en arrises s)all ?e re%!,e8 &r!% )e sie

/i)!u 8ela46

57 GRATING + CHE&UER PLATES FOR CLOSED DRAIN,CULVERT

=a> San8ar8 graings; c)e9uer plaes an8 &ra%es s)all c!%pl4 /i) )e San8ar8

Dra/ings issue8 ?4 )e Drainage Depar%en in all 8i%ensi!nal pariculars6

=?> F!r graings; c)e9uer plaes an8 &ra%es n! ! san8ar8 8i%ensi!ns an8 4pe; large

scale seci!nal 8ra/ings %us ?e su?%ie8 &!r appr!,al ?e&!re !r8ers are place86

=c> All graings an8 c)e9uer plaes pr!,i8e8 !,er cl!se8 8rainscul,ers s)all ?e

)inge8 ! &i+e8 &ra%es securel4 e%?e88e8 in! )e 8rain srucures6 T)e spacing !&

)e )inge8 graings s)all ?e in acc!r8ance /i) )e re9uire%ens !& )e rele,an

au)!riies6 $il8 seel )ea,4 8u4 graings s)all ?e use8 &!r cl!se8 8rains su?:ece8! ,e)icular l!a8ings; /)ereas lig) 8u4 graings s)all !nl4 ?e use8 &!r pe8esrian

l!a8ings6 T)e graings; &ra%es an8 c)e9uer plaes s)all ?e gal,anise86

5 ALUMINIUM RUNGS

=a> Alu%iniu% rungs s)all ?e a '33%% cenres an8 !& '3%% /i8)6 T)e rungs s)all

?e pr!,i8e8 i& 8ep) !& 8rains e9ual ! !r e+cee8ing 16#% an8 /i8) !& )e 8rains

e9ual ! !r less )an #%6

F!r cl!se8 8rains; )e rungs s)all ?e pr!,i8e8 a e,er4 .3% apar an8 &!r !pen

8rains; )e rungs s)all ?e pr!,i8e8 a e,er4 %ainenance !peningsgraings

acc!r8ing ! )e C!8e !& Pracice !n Sur&ace Waer Drainage6

=?> T)e rungs s)all ?e %a8e !& alu%iniu% all!4 .3# T. an8 !& appr!,e8 8esign

c!%pl4ing /i) 56S61*0*6

5! HANDRAILING

=a> nless !)er/ise speci&ie8; )an8railing an8 san8ar8s %a4 ?e %a8e &r!%c!ninu!us /el8 )! 8ippe8 gal,anise8 %il8 seel u?e %e8iu% 9uali4 '3%%

inernal 8ia%eer; c!%pl4ing /i) S6S6106 Fiings &!r )an8rail san8ar8s s)all

c!%pl4 /i) 56S6 10*36


33/110

$ATERIAL Page #'

=?> Alernai,el4; )an8railing an8 san8ar8s s)all ?e !& e+ru8e8 alu%iniu% u?e;

'3%% !usi8e 8ia%eer /i) r!?us cas alu%iniu% san8ar8s ! S6O6s appr!,al6

=c> T)e alu%iniu% all!4 s)all ?e '36 T)e e+ru8e8 alu%iniu% %e%?ers s)all ?e

&a?ricae8 &r!% alu%iniu% all!4 T'3TF; E'3TF !r F'3TF c!%pl4ing /i)

56S6 1*01; 56S6 1*0# !r 56S6 1*0* !r e9ui,alen6

6" PAINT

=a> All pains inclu8ing pri%ers an8 un8erc!as s)all ?e !?aine8 rea84 %i+e8 &!r use

&r!% appr!,e8 %anu&acurers6 T)e C!nrac!r s)all !nl4 ?e all!/e8 ! use pain

/)ic) is 8eli,ere8 ! )e sie in seale8 cans !r 8ru%s ?earing )e na%e !& )e

%anu&acurer an8 pr!perl4 la?elle8 as ! 9uali46

=?> All %aerials &!r %uliple c!as; e6g6 pri%ing; un8erc!a an8 &inis)ing c!a s)all ?e

!?aine8 &r!% )e sa%e %anu&acurer an8 s)all ?e )!se rec!%%en8e8 ?4 )e%anu&acurer as suia?le &!r using !ge)er an8 &!r )e sur&ace c!ncerne86 All ins

an8 s)a8es =inclu8ing un8erc!as> s)all ?e selece8 an8 appr!,e8 ?4 )e S6O66

=c> Pri%ing pain &!r srucural seel an8 cas ir!n s)all c!%pl4 /i)

S6S6.J T4pes 5 !r C6 Pri%ing pain &!r inc !r alu%iniu% sur&aces s)all ?e

appr!,e8 inc c)r!%ae pri%ing pain6 Oil-?ase8 un8erc!a an8 &inis)ing pains

s)all ?e si%ilar ! S6S6'* an8 S6S60 respeci,el4; ?u )e pig%ens s)all n! inclu8e

/)ie lea86

61 EROSION CONTROL BLANKETS

=a> T)e /!r( s)all c!nsis !& &urnis)ing; placing an8 %ainaining )e er!si!n c!nr!l

?lan(e =EC5>6

=?> T)e ?lan(e s)all ?e a %ac)ine-pr!8uce8 %a !& c!nsisen )ic(ness /i) c!c!nu

&i?re !r pal% !il &i?re; !r !)er appr!,e8 &i?res /i) e9ui,alen per&!r%ance

pr!peries; sic)e8 !r !)er/ise %ec)anicall4 ?!n8e8 e,enl4 !,er )e enire area

!& )e %a6 T)e ?lan(e s)all ?e c!,ere8 !n ?!) si8es /i) p)!!8egra8a?le

p!l4pr!p4lene neing an8 se/n !ge)er /i) p!l4eser )rea86

=c> T)e ?lan(e s)all )a,e )e &!ll!/ing pr!periesJ

C!c!nu &i?resJ


34/110

$ATERIAL Page #*

Pr!per4 Re9uire%ens

Weig) !& neing N! less )an #03 g%#Q 13

$es) sie !& neing N! %!re )an 1.%% + 1.%%

Funci!nal

l!nge,i4

N! less )an ' %!n)s

Pal% !il &i?resJ

Pr!per4 Re9uire%ens

Weig) !& neing N! less )an '33 g%#

$es) sie !& neing N! %!re )an 126#%% + '.6'%% !p

N! %!re )an 26'%% + 6%% ?!!%

Funci!nal

l!nge,i4

N! less )an ' %!n)s

O)er %aerials su?:ece8 ! appr!,alJ

Pr!per4 Re9uire%ens

Weig) !& neing N! less )an #03 g%#

$es) sie !& neing N! %!re )an 1.%% + 1.%%

Funci!nal

l!nge,i4

N! less )an ' %!n)s

=8> T)e C!nrac!r s)all su?%i ceri&ie8 es 8aa &r!% )e %anu&acurer c!,ering

eac) s)ip%en !& )e %aerial6

=e> Faseners s)all ?e use8 ! anc)!r )e ?lan(e ! )e prepare8 gr!un8s!il6 T)eappr!priae &aseners s)all ?e use8 in acc!r8ance /i) )e %anu&acurers 8esign

an8 suia?le &!r )e gr!un8 c!n8ii!ns6 E+cep gr!un8s )a /ill ?e pr!ece8 &!r a

leas 1# %!n)s; %eal !r n!n-8egra8a?le &aseners are n! per%ie86

=&> T)e &unci!nal l!nge,i4 !& )e ?lan(e ! ?e c)!sen 8epen8s !n )e 8!r%an

peri!8 !& )e ?are gr!un86 T)e l!nge,i4 !& )e ?lan(e s)all ?e c)!sen suc) )a

er!si!n /!ul8 ?e e&&eci,el4 un8er c!nr!l a )e ?are gr!un8 c!,ere8 /i) EC5

)r!ug)!u )e 8!r%an peri!8 !& )e ?are gr!un86 T)e C!nrac!r s)all ensure )a

n! ?are gr!un8 s)all ?e le& unpr!ece8 &r!% er!si!n &!r a %!n) !r l!nger6

=g> T)e C!nrac!r is 8ee%e8 ! )a,e all!/e8 in )e c!nrac &!r c!%pl4ing /i) )ea?!,e re9uire%ens6


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PART III - WORKMANSHIP

62 WORKMANSHIP GENERALL#

=a> T)e /!r(%ans)ip s)all ?e !& )e 9uali4 speci&ie86 W)ere )e 9uali4 !&

/!r(%ans)ip is n! speci&ie8 in )is Speci&icai!n !r in )e rele,an S6S6 !r 56S6 !relse/)ere; /!r( !& &irs class /!r(%ans)ip s)all ?e carrie8 !u6 All pers!ns

e%pl!4e8 !n )e W!r(s !r else/)ere in c!nneci!n /i) )e W!r(s s)all ?e

c!%peen an8 s(ille8 in )eir respeci,e !ccupai!ns6

=?> T)e !pini!n !& )e S6O6 regar8ing )e san8ar8 !& /!r(%ans)ip /ill ?e &inal an8

an4 /!r( c!n8e%ne8 as !& in&eri!r san8ar8 s)all ?e cu !u; re%!,e8 an8 replace8

! )e &ull e+en as 8irece8 ?4 )e S6O66

63 EXCAVATION GENERALL#

=a> T)e C!nrac!r s)all ?e 8ee%e8 ! )a,e ,isie8 an8 e+a%ine8 )e sie care&ull4 an8

! )a,e asceraine8 )e naure )ere!& an8 )e (in8s !& %aerials ! ?e e+ca,ae8;

an8 pr!,isi!n %us ?e %a8e in )e prices ! c!,er &!r )e 4pes !& %aerials ! ?e

e+ca,ae86

SR All e+ca,ai!ns s)all ?e carrie8 !u ! )e re9uire8 leng)s; ?rea8)s; 8ep)s;

inclinai!ns an8 cur,aures as %a4 ?e necessar4 &!r )e c!nsruci!n !& )e W!r(s

!r as s)!/n in )e 8ra/ings; in /)ae,er %aerial )a %a4 ?e &!un8 an8 )is prices

&!r e+ca,ai!n %us inclu8e &!r an4 4pe !& ear) li(el4 ! ?e enc!unere8 i6e6 s!&

ear); san8; s!& cla4; )ar8 cla4; ree r!!s ec6; an8 )e surplus s!il s)all ?e

8isp!se8 !&& as speci&ie8 )ereina&er an8 as 8irece8 ?4 )e S6O66

=8> E+ca,ai!ns s)all ?e per&!r%e8 in suc) a %anner an8 ?4 suc) %e)!8s as are

re9uire8 ! %ainain sa&e an8 sa?le sl!pes in )e %aerials enc!unere8; ! supp!r

a8:acen srucures; r!a8/a4s an8 pipes an8 ! ensure )e sa&e4 !& /!r(%en6 N!e+ca,ai!n; in areas re9uiring gr!un8/aer c!nr!l unless s)eee8 an8 ?race8; s)all

?e carrie8 !u /i) a sl!pe seeper )an # )!ri!nal ! 1 ,erical6

=e> All e+ca,ai!ns are ! ?e carrie8 !u acc!r8ing ! Par XII; E+ca,ai!n W!r( !& )e

Fac!ries Regulai!ns 12 an8 all applica?le sa&e4 regulai!ns un8er )e la/ !&

)e Repu?lic !& Singap!re6

=&> T)e C!nrac!r s)all !nl4 carr4 !u renc) e+ca,ai!n /!r( pr!,i8e8 )e rae !&

c!nsruci!n (eeps pace /i) )e rae !& e+ca,ai!n6


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=g> Reuse !& e+ca,ae8 %aerial suc) as naural s!ne; ari&icial s!ne; ?ric(; !p s!il

ec6J

=i> W)en e+ca,aing carriage/a4s; naural s!ne; ari&icial s!ne; ?ric( !r ar-

pa,e8 &!!pa)s !r gra,elle8 ,erges; )e C!nrac!r s)all &irs re%!,e all

%eals; sla?s !r ?ric(s &!r%ing )e e+ising pa,ing ! slig)l4 %!re )an )e/i8) !& e+ca,ai!n an8 (eep separae &r!% )e general e+ca,ae8 %aerial

&!r re-use in reinsae%en6 5rea(ing )r!ug) r!a8 &!un8ai!ns an8 sur&aces

s)all ?e all!/e8 &!r in )e raes &!r reinsae%en !ge)er /i) )e c!s !&

e%p!rar4 reinsae%en ! )e sais&aci!n !& )e S6O66

=ii> Pipe renc)es s)all ?e cu ! a su&&icien /i8) ! recei,e an8 all!/ )e

pipes ! ?e easil4 an8 pr!perl4 :!ine8; ?u su?:ec ! )e &!reg!ing s)all ?e

(ep ! )e %ini%u% pracica?le /i8)6 T)e renc) /i8) %a4 als! ?e

re8uce8 a !r a?!u )e pipe s!&&i le,el in !r8er ! re8uce )e &!r%ai!n

le,el6

=iii> An4 !ps!il s)all ?e e+ca,ae8 separael4 &r!% )e su?s!il an8 s)all ?e (ep

separae an8 ?e use8 ! c!,er renc)es; e%?an(%ens; sl!pes; ips; ,erges;

ec6 T)e sur&aces s! c!,ere8 s)all ?e neal4 ri%%e8 ! &!r% s%!!)

uni&!r% sl!pes !r le,el sur&aces as /)en 8irece8 ?4 )e S6O66

=)> S!c(pile !& E+ca,ai!n $aerial

=i> All surplus e+ca,ae8 %aerials s)all ?e care8 a/a4 ! )e C!nrac!r7s

!/n 8isp!sal gr!un8 i%%e8iael46 T)e surplus e+ca,ae8 %aerial s)all n!

?e s!c(pile8 !n sie6 N! e+ca,ae8 %aerial s)all ?e all!/e8 ! ?e

s!c(pile8 a8:acen ! )e e+ca,ai!ns; an8 )e C!nrac!r s)all; in general;

carr4 !u )e /)!le !& )e e+ca,ai!n /!r( in )e &!ll!/ing %anner6

=ii> p!n )e c!%%ence%en !& e+ca,ai!n /!r( an8 a suc) !)er i%es as )e

S6O6 %a4 re9uire; )e C!nrac!r s)all car )e e+ca,ae8 %aerial ! a ip !

?e pr!,i8e8 ?4 )e C!nrac!r6 W)en in )e !pini!n !& )e S6O6; su&&icien

e+ca,ae8 %aerial )as ?een care8 ! )e a&!resai8 ip; )e %aerial

su?se9uenl4 e+ca,ae8 s)all ?e care8 ! /!r(ing seci!ns !n a c!%plee8

p!ri!n !& )e /!r( an8 use8 as ?ac(&illing !n )!se seci!ns /)en

necessar4 !n c!%plei!n !& )e /)!le !& )e /!r(; !r a suc) !)er i%es as

)e S6O6 %a4 re9uire; )e e+ca,ae8 %aerial pre,i!usl4 a(en ! )e ippr!,i8e8 ?4 )e C!nrac!r; s)all ?e care8 ?ac( ! )e sie &!r ?ac(&illing6

I& )e ip pr!,i8e8 ?4 )e C!nrac!r is /i)in )e sie; )e ip area %us ?e

pr!perl4 c!naine8 an8 c!,ere8 ! pre,en ear) &r!% /as)ing in! )e

8rains !r canals6

=i> $easure%en O& E+ca,ai!n W!r(

=i> T)e 9uaniies !& e+ca,ai!n /ill ?e %easure8 as )e pr!8uc !& )e ne plan

area !& )e srucure an8 )e ,erical )eig) !& )e agree8 gr!un8 le,el a?!,e

)e &!r%ai!n le,els !& )e srucure !r in,er le,el in )e case !& a pipeline

an8 )e C!nrac!r /ill ?e pai8 in acc!r8ance /i) )e 9uaniies )usasceraine86 N! pa4%en /ill ?e all!/e8 &!r an4 a88ii!nal e+ca,ai!n

/)ic) )e C!nrac!r %a4 )a,e ! carr4 !u &!r /!r(ing space; i%?ering;

s)uering; ec6


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=ii> W)ere; in )e !pini!n !& )e S6O6; i is necessar4 &!r an4 reas!n ! &!r%;

e+en8 an8!r 8eepen &!un8ai!ns un8er !r ar!un8 an4 pars !& )e W!r(s

an8 a88ii!nal e+ca,ai!n s! !r8ere8 ?4 )e S6O6 /ill ?e pai8 &!r a )e raes

price8 in )e 5ill !& Buaniies6

64 TRIAL HOLES

=a> Trial )!les !& suc) sies an8 8ep)s an8 in suc) p!sii!n as %a4 ?e necessar4 !r

8irece8 ?4 )e S6O6 s)all ?e 8ug an8 i%%e8iael4 %a8e g!!8 an8 sur&aces

reinsae8 ! )e !riginal c!n8ii!n as %a4 ?e !r8ere8 ?4 an8 ! )e sais&aci!n !&

)e S6O66

=?> Su&&icien rial )!les %us ?e 8ug ! accurael4 l!cae an8 8eer%ine )e p!sii!ns

!& ser,ices an8 !?sruci!ns in a8,ance !& )e /!r(6 Trial )!les %a4 als! ?e

necessar4 ! in,esigae !r pr!,e s!il c!n8ii!ns in a8,ance !& )e %ain e+ca,ai!n6

=c> In all cases; )e rial )!les are ! ?e e+ca,ae8; re&ille8 an8 reinsae8 in acc!r8ance

/i) )e Speci&icai!n &!r e+ca,ai!n; re&illing an8 reinsae%en6

65 TRIAL BORING

=a> W)ere rial ?!rings !r ess )a,e ?een %a8e ?4 )e Depar%en; )e resuls %a4 ?e

%a8e a,aila?le ! )e C!nrac!r6 T)e resuls !r an4 !)er in&!r%ai!n !n sraa is

gi,en in g!!8 &ai) ?u )e 5!ar8 acceps n! resp!nsi?ili4 &!r )e accurac4 !r

relia?ili4 !& suc) in&!r%ai!n6 In all cases; )e C!nrac!r /ill ?e 8ee%e8 ! )a,e

sais&ie8 )i%sel& as ! )e 4pe !& sraa an8 gr!un8 c!n8ii!ns ! ?e enc!unere88uring )e W!r(s6

=?> A88ii!nal rials ?!rings re9uire8 ?4 )e C!nrac!r ! &ur)er in,esigae )e s!il

c!n8ii!ns s)all ?e carrie8 !u ?4 )e C!nrac!r a )is !/n e+pense6

66 EXCAVATION IN ROCK

..61 GENERAL

=a> An4 r!c( %e /i) in e+ca,ai!n ! )e re9uire8 8ep)s s)all ?e re%!,e8 ?4

/e8ging; ?lasing !r !)er/ise as )e S6 O6 %a4 8irec6 F!r )e purp!ses !& )is

C!nrac; r!c( s)all ?e 8ee%e8 ! ?e )ar8 naural %aerial /)ic) cann! ?e

e+ca,ae8 /i)!u )e use !& /e8ges; c)isels; pneu%aic 8rills !r e+pl!si,es6

nla%inae8 r!c( s)all ?e )ar8 san8s!ne !r granie /i)!u ?e88ing !r clea,age

planes6 La%inae8 r!c( s)all ?e )ar8 s)ale !r )ar8 laerie in 8isinc la4ers an8

s)all n! inclu8e )ar8 cla4 /)ic) s)all ?e e+ca,ae8 a )e n!r%al raes &!r

e+ca,ai!n

=?> T)e S6O6s 8ecisi!n as ! /)e)er !r n! )e %aerial !& )e e+ca,ai!ns is ! ?e

classi&ie8 as r!c( s)all ?e &inal an8 )e C!nrac!r /ill ?e pai8 e+ra !,er &!re+ca,ai!n in r!c( as 8e&ine8 a?!,e a )e raes 9u!e8 in )e 5ill !& Buaniies6

=c> T)e 9uaniies !& r!c( ?ille8 are PRO


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&ur)er e+ca,ae8 ! suc) 8ep)s as )e S6O6 %a4 8irec an8 re&ille8 ! !riginal

&!r%ai!n le,el /i) %ass c!ncree !r )ar8c!re !r 9uarr4 /ase as %a4 ?e 8irece86

Pa4%en /ill ?e %a8e &!r suc) a88ii!nal e+ca,ai!n an8 &illing a appr!priae

raes6

6 PREVENTING DAMAGE DUE SUBSIDENCE

W)en an4 e+ca,ai!n is carrie8 !u near; !r un8er an4 e+ising /!r( inclu8ing

?uil8ings; ser,ices; %ains; ca?les; an8 sur&aces suc) as r!a8s; ec6 lia?le ! ?e a&&ece8 ?4

su?si8ence; )e C!nrac!r s)all pre,en 8a%age ?4 su?si8ence; /)e)er suc) e+ising

/!r( is s)!/n !n )e 8ra/ings !r n!6

6! TIMBERING OF EXCAVATION

=a> T)e er% i%?ering s)all c!,er all necessar4 %e)!8s !& supp!r inclu8ing )e use!& i%?er; c!ncree; seel s)ee piling; seel s)eeing !r suc) %aerials as %a4 ?e

appr!,e8 ?4 )e S6O6 I& i%?er is use8; i s)all ?e !& )e species Keruing !r Ke%pas6

=?> T)e C!nrac!r s)all suppl4 an8 &i+ sr!ng an8 su&&icien i%?ering ! supp!r )e

si8es an8!r ?!!% !& )e e+ca,ai!n ! )e sais&aci!n !& )e S6O6 an8 s)all

%ainain )e sa%e unil )e c!nsruci!nal /!r( is su&&icienl4 a8,ance8; in )e

!pini!n !& )e S.O. ! per%i )e i%?ering ! ?e /i)8ra/n; /)ic) s)all ?e

c!n8uce8 !nl4 un8er )e pers!nal super,isi!n !& a c!%peen pers!n e%pl!4e8 ?4

)e C!nrac!r6

=c> T)e C!nrac!r s)all carr4 !u suc) i%?ering an8 s)!ring /i) 8ue c!nsi8erai!n !

&ull &l!/ !r &l!!8ing c!n8ii!ns all ! )e sais&aci!n !& )eS.O66

=8> T)e C!nrac!r is re9uire8 ! su?%i ! )e S6O6 8ra/ings an8 calculai!ns s)!/ing

8eails !& )e pr!p!se8 i%?ering &!r appr!,al6 W)ere e+ca,ai!n e+cee8s a 8ep) !&

*%; )e C!nrac!r is re9uire8 ! engage a regisere8 Pr!&essi!nal Engineer ! su?%i

)e 8esign an8 super,ises )e ereci!n !& )e i%?ering6 N! e+ca,ai!n /!r( %a4

sar unil )e i%?ering 8eails are appr!,e86 W)ere e+ca,ai!ns &!r cul,er srucures

are re9uire8; )e C!nrac!r %us su?%i )e &ull 8eails !& )e pr!p!se8 i%?ering

%e)!8s /i)in !ne %!n) !& )e 8ae !& Accepance !& Ten8er6 Failure ! su?%i an8

!?ain appr!,al !& 8eails e+pe8ii!usl4 %a4 resul in8ela4s /i) a c!nse9uen clai%&!r 8a%age6 T)e C!nrac!r s)all n! ?e enile8 ! an4 e+ensi!n !& Ti%e &!r

C!%plei!n !n )is gr!un86N!/i)san8ing )e appr!,al gi,en; )e S6O6 reser,es )e

rig) ! insruc )e C!nrac!r ! i%pr!,e; aler; re,ise an8 sreng)en )e i%?ering

&r!% i%e ! i%e6

=e> T)e C!nrac!r s)all ?e resp!nsi?le &!r an4 in:ur4 ! )e /!r( an8 an4 c!nse9uenial

8a%ages cause8 arising !u !& )e re%!,al !& )e i%?ering an8 an4 a8,ice;

per%issi!n !r appr!,al gi,en ?4 )e S6O6 relaing ! )e re%!,al !& i%?ering s)all n!

relie,e )e C!nrac!r &r!% )e resp!nsi?ili4 speci&ie8 in )e C!nrac6

&> T)e S.O.s)all )a,e )e rig) ! !r8er e+ca,ai!n an8 c!nsruci!n /!r( ! ?e carrie8!u in suc) leng)s an8 in suc) seci!ns !& )e W!r(s; as /ill; in )is !pini!n;

%ini%ise )e 8anger !& suc) !pen e+ca,ai!n a&&ecing )e sa?ili4 !& an4 near?4

srucures !r gr!un8; an8 )e C!nrac!r s)all )a,e n! clai% &!r e+ra pa4%en !n )is


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acc!un6 S)!ring i%?ers s)all ?e re%!,e8 as )e /!r( pr!cee8s !nl4 i& )eir re%!,al

8!es n! en8anger e+ising a8:acen srucures6 W)ere )eS.O.8ee%s i 8anger!us

! re%!,e )e s)!ring i%?ers; suc) i%?ers s)all n! ?e re%!,e86

7" TIMBERING LEFT-IN

T)e C!nrac!r s)all ?e pai8 &!r all i%?ering le& in )e e+ca,ai!ns !n )e

insruci!n !& )eS.O.pr!,i8e8 )e i%?er is re9uire8 ! gi,e per%anen supp!r ! renc)

si8es; ser,ices !r ?uil8ing6 N! pa4%en s)all ?e %a8e /)ere i%?er )as ! ?e le& in; !n )e

insruci!n !& )e S.O. ! c!uner an4 8e&ec !r negligence in )e C!nrac!rs e+ecui!n !&

)e /!r(6 Onl4 )e acual 9uani4 !& i%?er le& in s)all ?e pai86 Pa4%en s)all n! ?e %a8e

&!r la?!ur in cuing n!r &!r i%?er in en8s )us cu !&&; n!r &!r )e 8isp!sal !& a88ii!nal

surplus e+ca,ae8 %aerials 8ue ! )e lea,ing in !& i%?er6

71 STEEL TRENCH SHEETING

=a> W)ere )e su?s!il c!n8ii!ns are e+pece8 ! ?e !& a s!& an8 unsa?le c)aracer in

renc) e+ca,ai!n; )e n!r%al %e)!8s !& i%?ering /ill pr!?a?l4 pr!,e ina8e9uae

! a,!i8 su?si8ence !& )e a8:!ining r!a8 sur&aces an8 !)er ser,ices6 T)e C!nrac!r

s)all ?e resp!nsi?le &!r all suc) 8a%ages as speci&ie8 else/)ere6

=?> In suc) circu%sances )e C!nrac!r s)all use Seel Trenc) S)eeing !r S)ee Seel

piling a8e9uael4 supp!re8 ?4 i%?er srus; /alings; ec6 T)e C!nrac!r s)all ?e

e+pece8 ! suppl4; pic); 8ri,e an8 su?se9uenl4 re%!,e renc) s)eeing !r piling in

acc!r8ance /i) !)er i%?ering ie%s speci&ie8 in )e Speci&icai!ns an8 )e er%s

Ti%?er !r Ti%?ering s)all als! appl4 ! Seel Trenc) S)eeing !r S)ee Seel Piling

)r!ug)!u6

72 STEEL SHEET PILING

=a> T)e C!nrac!r s)all ?e a li?er4 ! use seel s)ee piling &!r an4 purp!se 8uring )e

c!nsruci!n !& )e /!r(s; su?:ec ! )e appr!,al !& )e S6O6 an8 s)all ?ear all an8

e,er4 e+pense in c!nneci!n )ere/i); inclu8ing /ase an8 ?urning !&& piles i&

necessar46

=?> Seel s)ee piles s)all c!n&!r% ! )e pr!,isi!ns !& 56S6*'.3 an8 s)all ?e 8ri,en

/)ere re9uire8 an8 appr!,e8 !r 8irece8 ?4 )e S6O66

=c> T)e C!nrac!r is re9uire8 ! engage a regisere8 Pr!&essi!nal Engineer ! 8esign )e

la4!u !& )e piling an8 )e !,erall 8i%ensi!ns !& )e e+ca,ai!n ! sui )e s)ees

an8 c!rners a,aila?le an8 ! gi,e su&&icien /!r(ing space &!r )e pr!per

c!nsruci!n !& )e /!r(6 F!r purp!ses !& )is C!nrac; i s)all ?e clearl4 an8

8e&iniel4 un8ers!!8 )a )e er%s i%?er !r i%?ering as use8 in an4 p!ri!n !&

)e Speci&icai!ns; s)all ?e 8ee%e8 ! inclu8e Seel S)ee piling6


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73 LIABILIT# FOR TIMBERING

=a> N! /!r( 8!ne ?4 )e S6O6 !r )e &ac )a )e i%?ering )as c!%plie8 /i) )e

Speci&icai!n s)all a?s!l,e )e C!nrac!r &r!% )is resp!nsi?ili46 T)e C!nrac!r

s)all ?e resp!nsi?le &!r %a(ing g!!8 an4 8a%age cause8 as a resul !& )e

i%?ering &ailing ! gi,e pr!per supp!r ! )e si8es !& )e e+ca,ai!n6

=?> T)e i%?ering ! )e si8es !& e+ca,ai!n &!r srucures s)all ?e carrie8 !u in suc) a

/a4 )a )ere is n! !?sruci!n cause8 ! )e &i+ing !& &!r%/!r( &!r )e /alls6 T)e

supp!ring sru an8 /alings s)all ?e re%!,e8 ?4 )e C!nrac!r in sages ! sui )e

pr!gress !& c!ncreing6

=c> I& )e S6O6 is n! sais&ie8 )a )e san8ar8 !& i%?ering is e9ual ! )a s)!/n !n

)e appr!,e8 8ra/ings !r )a )e si8es !& )e e+ca,ai!ns )a,e n! ?een secure8 in

a %anner ! ren8er suc) e+ca,ai!ns sa&e &!r /!r(ing; )e %a4; a&er gi,ing )e

C!nrac!r !r )is represenai,e !ne )!ur n!i&icai!n in /riing; insruc an!)er

par4 ! suppl4 la?!ur; %aerial; plan; i%ple%ens an8 ransp!r ! aler )ei%?ering an8 )e c!s !& suc) /!r(s s)all ?e pai8 &!r ?4 )e C!nrac!r6

74 DRAINAGE

=a> T)e C!nrac!r s)all n!e )a n! e+ising /aerc!urse s)all ?e &ille8 up unil pr!per

8i,ersi!n 8rains are pr!,i8e86 T)e C!nrac!r s)all ensure )a )ere is n! ?l!c(age

in )e e+ising 8rains an8 s!r% /aer can ?e e&&eci,el4 8raine86

=?> E+ca,ae8 sur&aces up!n !r agains /)ic) c!ncree is ! ?e 8ep!sie8 s)all ?e (ep

8r4 an8 clean6 Special precaui!ns are ! ?e a(en ! pre,en /aer &r!% /as)ing

!u ce%en !r &ines /)ils )e c!ncree is seing6

=c> T)e C!nrac!r s)all (eep all e+ca,ai!ns clear !& /aer6 e s)all als! a(e care

)a a all sages !& )e W!r(; )e sies are (ep pr!perl4 8raine8 an8 )a san8ing

p!!ls !& sur&ace /aer are n! all!/e8 ! &!r%6

=8> T)e C!nrac!r s)all 8rain an8 8r4 !u )e cu area an8 (eep )e e+ca,ai!n &ree

&r!% /aer an8 %u8 &r!% an4 s!urces6 e s)all pr!,i8e an8

pub std specs drainage works 3rd ed july 2002.doc

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