2x150mw dmci cwp 001 earthworks

8/18/2019 2x150mw Dmci Cwp 001 Earthworks

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CIVIL WORKS PROCEDUREEffectivity Date:

June 4, 2013

Project Name:

2 x 150MW SLPGC CFB POWER PLANT PROJECTPHASE 1

Document Code:

2X150MW-MC!-CWP-00"

Document Title:

METHO STATEMENT FOR EARTHWOR#SRev. No.

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C!'!L WOR#S PROCE(RE )METHO STATEMENT FOR

EARTHWOR#S

Prepared by:

FRE!E N$ RAGAASCQC – Civil Works

Reviewed by:

ARNOL C$MACARAEG

Deputy Site Manager

EBASH!SHCHA#RA'ARTT*

Site Manager

Approved by:

ROBERT A$ BACENADeputy Project Director

GAETANO P!SAP!AProject Director

ExecutionDate

RevisionNumer

Revision !ype

Description o" C#angesPage

$%ecte&'riginator

05-24-12 ∅ New Initial Issuance -F Ra!aas" #$#-#ivil

%or&s


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Document Title:


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T+e %& C%n.en./()* P+RP'SE...............................................................................................................3

,)* SC'PE '- W'R. ................................................................................................3

,)( /eneral Description........................................................................................3

,)( !ools an& E0uipment.......................................................................................4

,)1 Materials..............................................................................................................4

,)2 Site planning 3 preparation.........................................................................4

,)4 Work Met#o&ology...........................................................................................5

,)5 'rgani6ation7 Responsiilities 3 Supervision........................................9

,)8 Work -orce........................................................................................................10

1)* RE-ERENCES.....................................................................................................11

2)* EN9:R'NMEN!$;7 S$-E!< $ND =E$;!=.................................................11

2)( >o Sa"ety $nalysis.......................................................................................11

2), Protective 3 Sa"ety E0uipment..............................................................11

2)1 :n"ormation to Personnel............................................................................11

2)2 Emergency Proce&ures...............................................................................11

4)* Q+$;:!< $SS+R$NCE.....................................................................................11

4)( Quality Re0uirements !ale.......................................................................11

5)* $PPEND:CES......................................................................................................12

Table of Figures:

FI'(R) 1: #*)ARIN' + 'R(,,IN' 8FI'(R) 2: ,A#FI**IN' .#/)) 00 #3PA#) /)I'/ P)R *A6)R7 8FI'(R) : A#(A* F A#I8I6 (.IN' .P))6 3I.(R) ).)R ?


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Document Code:

2X150MW-MC!-CWP-00"

Document Title:


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1$0P(RPOSE

!#is &ocument provi&es a met#o& statement in estalis#ing acompre#ensive an& &etaile& met#o&ology an& ot#er re0uirements "or eart#@orksin accor&ance @it# t#e contract speciAcations an& in con"ormity @it# approve&plans an& &ra@ings

2$0SCOPE OF WOR#

2.1 General Description

!#is construction met#o& statement provi&es a &etaile& met#o&ology an&proper se0uence to e a&opte& in eart#@orks inclu&ing preBconstruction survey7clearing an& gruing7 removal o" structures an& ostructions7 #auling out o" unsuitale materials7 excavation7 sugra&e7 ackAlling an& compaction inclu&ingt#e utili6ation o" eart# moving e0uipment an& tools7 materials an& @ork"orcenecessary to accomplis# t#is speciAc item o" @ork in con"ormance @it# t#ere0uirements an& speciAcations o" t#e contract)

!#e scope o" t#is @ork met#o& involves preBconstruction survey @orks to&etermine original groun& &ata an& covers clearing7 gruing7 removing an&&isposing all vegetation an& &eris as &esignate& in t#e Contract) $ll sur"aceojects @it#in at least 1**mm &ept# an& all trees7 stump7 roots7 organic matteran& ot#er protru&ing ostructions7 not &esignate& to remain s#all e cleare&an&or grue&7 inclu&ing mo@ing as re0uire&) Fuil&ings7 "ences7 structures7 ol&pavements7 aan&one& pipe lines an& any ostruction @#ic# are not planne& toremain s#all also e remove& an& &ispose& properly)

Excavation @orks s#all e Anis#e& to reasonaly smoot# an& uni"ormsur"aces) FackAlling @orks s#all "ollo@ "rom a prepare& sugra&e alrea&y

strippe& an& cleare& o" all vegetation an& &eris an& t#e re0uire& ackAlling@orks ma&e up o" satis"actory materials @#ic# passes t#e re0uirements an&speciAcations o" t#e Contract) !#ere s#all e a minimum 1**mm compacte&layer covering t#e "ull stretc# o" t#e area eing compacte& an& it s#allsuse0uently pass -iel& Density !esting -D!at G4H o" t#e estalis#e&laoratory MDD Maximum Dry Density as speciAe& in t#e plans)

2.1 Tools and Equipment

!#e "ollo@ing items are t#e e0uipmenttools re0uire& "or t#is speciAcscope o" @ork consi&ering project sc#e&uling re0uirementsI


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Document Title:


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N%$ Euen. . (n. Re+67/() Do6er ea)

,) Roa& /ra&er ea)

1) Dump truck ea)

2) =y&) Excavator ea)

4) Water truck ea)

5) 9iratory roller ea)

8) -D!ND/ apparatus set?) Survey e0uipment Set

Note: 9e nuber and ;uantities o< above e;uipent and plant will bedeterined to suit t9e contract pro!ra

2.3 aterials

Emankment materials s#all e constructe& o" suitale materialsacceptale in accor&ance @it# t#e contract re0uirements an& speciAcations an&may consists o" common material or rock)

+nsuitale materials not to e incorporate& in t#e @orks s#all e&iscar&e& an& &ispose& accor&ingly out o" t#e site premises) Suc# materialsmay contain &etrimental 0uantities o" organic origin like grass7 roots an&se@erage)

2.! "ite planning # preparation

$ preBconstruction survey jointly un&ertaken @it# t#e S;P/Crepresentatives s#all e un&ertaken to &etermine t#e extent an& limits o" t#eproject) Fenc#marks7 tie points an& ot#er re"erences s#all e estalis#e& as a

"uture re"erence in &etermining t#e re0uire& lines an& gra&es)

Existing structures s#all e remove& @#olly @#ile salvage& materials as&etermine& upon s#all e sa"eBkeep an& store& as &irecte&) !#is s#all e use& inconstruction o" temporary "acilities)

Prior to ackAlling @orks7 all necessary clearing an& gruing in t#at areas#all #ave een complete& in con"ormity @it# contract plans an& speciAcations)


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$ll ackAlls s#all contain no muck7 peat7 so&7 roots or ot#er &eleteriousmatter) Rocks7 roken concrete or ot#er soli&7 ulky materials s#all not e place&in emankment areas @#ere piling is to e place& or &riven)

$pprove& ackAll materials s#all e source& out "rom ;ocal Quarry sitean& all unsuitale materials s#all e #aule& out o" t#e construction site)

2.$ %or& et'odolog(

OBJECT!'E

J !o ensure proper implementation o" t#e project ase& onproject plans&ra@ing speciAcations an& sc#e&ules)J !o ensure t#at construction met#o&s strictly "ollo@ t#e preBapprove& construction met#o& statement an& onBtime completiono" speciAc scope o" @ork)

SCOPE !#is proce&ure covers activities "rom preBconstruction survey tot#e con&uct o" -iel& Density !esting "or ackAlling an& compactionto c#eck i" it complies @it# t#e contract re0uirements)

Re/%n/.

A8.9.e/ Euen.:/

!n.e6&+8e/

Survey !eamDMC:S;P/C

Note ( Survey

e0uipmentSurvey -iel& Notes

-iel& EngineerSupervisor

DMC:Note ,

Dump truck3

Do6erMotor/ra&er

Daily ProgressReport


Surveye0uipment

Re0uest "or >ointSurvey

Survey -iel& Notes

-iel& EngrSupervisorP:C

DMC:

FackAlling Re0uest-orm


DMC:Note 1

Dump truck3

Do6erMotor/ra&er



DMC:Note 2

9iratoryRoller Daily Progress

Report

Conduct joint pre-construction survey

Undertae clearing!

Conduct joint surveyc#ecing as to location

and elevation

$u"mit re%uest for "acfilling&compaction at

$'P(C

Dump and spread "acfill

)

*nitially compact to levelsurface


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Document Title:


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Re/%n/.

A8.9.e/ Euen.:/

!n.e6&+8e/


DMC:

Note 4 Water truckDaily Progress

Report


DMC:Note 5 Motor /ra&er



DMC:Note 8 9iratory

Roller


-iel& EngineerSupervisorP:C

DMC:Notice o" testing

Q$QC !eamDMC: 3S;P/C

Note ?-D!

$pparatus-iel& Density !est

Report

Q$QC !eamDMC: 3S;P/C

Note G


Surveye0uipment Survey -iel& Notes

NOTE 1< C%n=u8. J%n. P6e-C%n/.6u8.%n Su69e() $ preBconstruction survey s#all e con&ucte& y DMC: operation

an& DMC: CQC representative @ill e con&ucte& to &etermine t#ere0uire& control7 estalis#ing enc#marks an& tie points

)

C#ec if needed +ater sprinling&aeration

'evel +it# motor grader toattain re%,d cro+n&level

Re-compact to ac#ievedre%uired density

Re%uest to conduct ieldDensity Test

Undertae ield DensityTest

RectifyNotedDefect

Pass No

/es

Record survey data of compacted area


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Document Title:


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NOTE 2< (n=e6.+7e Ce+6n>, G6un> ? /%/+() $ll vegetation7 &eris7 trees7 stumps7 roots an& ot#er protru&ing

ostruction s#all e cleare&) :t s#all also inclu&e t#e salvaging o" &esignate& materials an& ackAlling t#e resulting trenc#es7#oles7 an& pits)

Figure 1: Clearing & Grubbing

NOTE 3< u ? S6e+= B+87@ M+.e6+/() W#en ne@ emankmentackAll is to e place& against existing

ackAll7 t#e existing slopes s#all e continuously enc#e& overt#ose areas as t#e @ork is roug#t up in layers)

,) Roa&@ay ackAll o" eart# material s#all e place& in #ori6ontallayers not excee&ing 2**mm7 loose measurement an& s#all ecompacte& as speciAe& e"ore t#e next layer is place&)

Figure 2: Backfilling Scheme (300mm compacted height per laer!

NOTE 4< !n.+ C%+8. .% Le9e Su6&+8e

1$ $ compaction trial section s#all e con&ucte& to otain t#ere0uire& compaction e%ort to attain t#e necessary &egree o" compaction)


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Document Title:


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NOTE 5< W+.e6 S6n7n>:Ae6+.%n() Water s#all e a&&e& or remove& i" necessary7 in or&er to otain

t#e re0uire& &ensity),) Removal o" @ater s#all e accomplis#e& t#roug# aeration y

plo@ing7 la&ing7 &iscing or ot#er met#o&s satis"actory toac#ieve t#e ojective)

NOTE ;< Le9e : M%.%6 G6+=e6 .% A..+n Reu6e= C6%n:Le9e

() $s t#e compaction o" eac# layer progresses7 continuous levelingan& manipulating @ill e re0uire& to assure uni"orm &ensity)

NOTE "< Re-8%+8. .% A8e9e= Reu6e= en/.() !#e Contractor s#all compact t#e material place& in all

emankment layers an& t#e material scariAe& to t#e &esignate&&ept# until a uni"orm &ensity o" not less t'an )$* of t'ema+imum dr( densit( &etermine& y $S!M DB(448 Met#o& F7is attaine& at a moisture content suitale "or suc# &ensity)

Figure 3:

"ctual F#$ acti%it uing

Speed 'oiture $eter

NOTE <C%n=u8. Fe=en/. Te/.

() -iel&Density !ests

-D! s#all e con&ucte& "orevery layer o" compacte& material in accor&ance @it# $S!M DB


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(445B*8 or ot#er approve& Ael& &ensity tests inclu&ing t#e use o" properly calirate& nuclear testing &evices) !#e "ollo@ingproce&ure s#o@s t#e steps nee&e& to con&uct t#e -D!I

a) Select a location t#at @ill e t#e representative o" t#e areato e teste&)

) Place t#e metal ase plate to t#e selecte& location an&secure t#e metal ase plate on t#e groun& y provi&ingnails on t#e e&ges)

c) Make a #ole accor&ing to t#e &iameter o" metal ase plate7at least (4cm &eep)&) Secure t#e soil sample in a plastic or container t#en @eig#

an& recor& it)e) $"ter @eig#ing place it on top o" t#e #ole t#en open t#e

valve o" t#e san& cone apparatus7 @ait until t#e #ole is "ullt#en close t#e valve an& @eig# again an& recor&)

") /et a ,*grams o" soil sample an& put it in t#e spee&ymoisture content apparatus t#en s#ake7 recor& t#emoisture content result)

g) Calculate t#e "ollo@ing using t#e "ormula state& in t#e -D!

"orm see attac#menti) +se& san&ii) San& to All t#e #oleiii) 9olume o" test #oleiv) :n place @et &ensity o" soilv) :n place &ry &ensity o" soil

vi) H compaction otaine&

,) $t least one !roup o< t9ree in-situ density tests s#all e carrie&out "or eac# 4** s0)m) o" eac# layer o" compacte& All)

NOTE D< E9+u+.%n %& Te/. Re/u.() :" y suc# tests t#e speciAe& &ensity an& moisture con&itions

#ave not een attaine&7 t#e Contractor s#all per"orm a&&itional@orks as may e necessary to attain t#e speciAe& con&itions)

2., Organi-ation Responsibilities # "uper/ision

,)5)( Personnel 'rgani6ationDuring t#e execution o" @ork un&er t#is &ocument t#e "ollo@ing

personnel @ill e &eploye& as minimum I

• Project Supervisor-iel& Engineer

• Q$QC :nspector• E0uipment :nBc#arge


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• Sa"ety 'Kcer

,)5), Responsiility 3 Supervision

:t is t#e responsiility o" t#e ContractorLs sta% an& personnel tocomply @it# t#e proce&ures set out in t#is &ocument ) !#e responsiilities o" t#e key personnel are outline& "or clarity an& easy re"erence elo@)

a) Project Supervisor-iel& EngineerIo Ensure t#at Construction Met#o& Statement is strictly "ollo@e&)

o Monitor t#e implementation o" @ork plan)

o Coor&inate @it# t#e Q$QC team "or all NonBCon"ormance Report

an& un&ertake reme&ial action)

) Q$QC :nspector Io Ensure t#at :nspection !est Plan is strictly "ollo@e&)

o Monitor t#e implementation o" approve& QC plan)

o Control all NonBCon"ormance Report an& un&ertake reme&ial action)

c) E0uipment :nBc#arge Io Ensure t#at re0uire& e0uipment are availale an& in @orking

con&ition)o Ensure t#at e0uipment &ispatc# "ollo@s t#e approve& sc#e&ule)

&) Sa"ety 'Kcer

o Ensure t#at all personnel #ave un&ergone sa"ety in&uctiontoolox)

o Ensure t#at all Ael& personnel comply @it# t#e clients ES3 = plan

re0uirements)o Reports an& investigate all acci&ents an& inci&ents)

2.0 %or& Force

N%$ T6+=e . (n.() =eavy E0uipment

'peratorea)

,) Spotter ea)

1) ;aoratory !ec#nician ea)

2) ;aoratory $i&e ea)

4) ;aor=elper ea)

5) :nstrumentman ea)

8) Survey $i&e ea)


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Note: 9e Nuber o< persons s9all be selected in accordance wit9 wor&conditions and re;uireents

3$0REFERENCESo Contract Documents

o =ealt# an& Sa"ety Plan

o DPW= Stan&ar& SpeciAcations ,**2

o $S!M =an&ook

4$0EN'!RONMENTAL, SAFET* AN HEALTH

!.1 ob "afet( nal(sis

See >o Sa"ety $nalysis

!.2 rotecti/e # "afet( Equipment

Personal sa"ety e0uipment is a must to e @orn at all site activities) Cotton gloves

Sa"ety S#oes

Sa"ety goggles @it# si&e protection

Dust Mask

=ar& #at

!.3 4nformation to ersonnel

!ool ox meeting @ill e con&ucte& y Sa"ety 'Kcer or

Supervisor ) $ll sa"ety relate& matters must e emp#asi6e& to t#e @#ole

team)

!.! Emergenc( rocedures

:n case o" Emergency situation 7 t#e Contractor s#oul& "ollo@ t#eEmergency Proce&ure an& Emergency an& Evacuation Response Plansumitte& an& approve& y t#e management)

5$0(AL!T* ASS(RANCE

$.1 5ualit( Requirements Table


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Te C%+n8e Re+67/() -iel& Density !est