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Event: Septic Tank 1

First Step: Establish proposed working platform -> Earthwork Acti

Reason: 1 inimi!ing earthwork after com& Ens"re the ease of earthwork e'

( Ens"re the stabilit) of one metre

. Stabili!e the ha!ard !one %rst# Fi

Second Step: /ewatering

1 Establish a well or shoring 0prop

& 3t seepage thro"gh it and the wa

 Third Step : Ens"re 4rotection on ain /rain

1 Strengthening the soil stabilit) and avoid

Appl) Steel 4late along the main

Ascertain the location and nat"r

rock "sed for riprap will be done

Forth Step: Temporar) c"t o< pile at level 8m

1 to ease the placement the piling

& to ease the e'cavation of septic

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Zone PRL Road Fdn

A /rivewa) Ramp 8#1,m > m   350mm+

/rivewa) Septic Tank m350mm

/rivewa) Ramp 1#7m350mm

  vities

letion on septic tank constr"ction# $ess %ll and c"t activities afterward#  cavation on septic tank

main drain beside fencing - platform level of *one + to be maintained 1#,

ll the septic tank area to stabili!e the area as e'cavation can be done speed

sed level min"s &m2 depth which allow water seepage#

ter being p"mp direct to nearest drain#

loosen fo"ndatoin on main drain

drain &m5(#6m on 1#78m below# ethod: 9ibration on steel plate and baka"

of an) e'isting s"bstr"ct"res and services and shall take ever) necessar)

b) a la)er thickness of 1m which from 1##8m ;1#7 m

machine on 1(=.=&81

tank

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s on septic tank 1

o"ndation base

  septic tank

started#

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 Asph Road  Ext Subgrade Lvl Subgrade Proposed Lvl

100mm 1#7m 1#m

100mm min"s1#8m 1#,m

100mm m 1#,m

#

as anchoring

  reca"tion against damaging or interfering with them d"ring e'cavations

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Earthwork 

"t 8#( m

"t 1#& m for septic tank fdn

c"t 8#(m

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