Wednesday, June 23, 2010

Earthwork

Earthworks are engineering works created through the moving of massive quantities of soil or unformed rock. Engineers need to concern themselves with issues of geotechnical engineering (such as soil fluidity and friction) and with quantity estimation to ensure that soil volumes in the cuts match those of the fills, while minimizing the distance of movement. (wikipedia)


how to began this part.... i'll start with a few facts that i get from other people :

  1. usually, earthworks is been done at early stage of construction. to receive platform level and to ensure soil are well compacted.
  2. at my project (right now), to save money, no earthwork at early stage construction. it is decided to do at last stage of construction (right now)
problems:
  1. clash with other progress of work at site (concreting/ excavation/material on site)
  2. no clean soil for backfilling (contains contruction debris)
  3. .....................ntah banyak sgt kot sampai x terhabaq chek..
  4. actually masa panggil sub con masuk, boundary utk eartwork pon belum decide lagi. maklumla bende2 ni is COST.actually site boundary ni besar gak. tgk Arena bg harga lump sum utk earthwork+ turfing near RM500,000 termasuk demolish existing building.
  5. no surveyor (from main con) so x ada boundary, X ada OGL utk determine finish level for earthwork.
  6. x ada suitable tempat untuk dump execessive soil.
construction stage:
  1. mula2 km decide supaya diorg wat clearance 10m dr tepi jalan ngan earthdrain ( aku rasa utk elakkan depa idle & at least we seen something)

10m clearance dr tepi jalan ngan earthdrain.
* earthdrain is penting untuk surface runoff . elakkan air pergi ke jalan.

  1. pas 2 suh diorg wat clearance in building area. backfilling tempat yg rendah (STP & tepi tadika). STP ngan Tadika mmg super rendah, banyak betoi nk backfill. mostly tanah dr bangunan ler sbb area bangunan tanah tinggi.
estimated level tadika:
bacfilling height: plus minus 3feet


  1. termasuk gak cut area2 block G2&G6( nnti aku pos ler mana G2, G6 bagai ehehe). mmg kalau tgk first, bgnn mcm dok dlm kawah, rendah..
building level; 55.4
estimated cutting height: 3 meter

  • cabaran kt bangunan, material on site la, scaffold, stockpile pasir, pipe2..maklumla subcon infra (longkang& water rec masih galak jalan keje yg pending dkt 1/2 tahun). kalo scaffold sapa lg En Rc punya lerr.
  • masa ni coordination penting la, mn patut nk longgok barang2 subcon lain, pastu kn suh depa alih barang2 ngan pnoh berhemah.
  • da siap backfill..setelah ding dong2.. site boundary finalize..En Arena Perintis menghentam kawasan hutan simpan kem syed putra tanpa belas kasihan terhadap flora dan fauna. 2 excavator, 2 dump truck. br 1st day start, abis paip air,wayar letrik kena hentam (deja-vu zon 1)

  1. problem plak kt cni: rc x nk alih sampah sarap depa. da bg memo. mmg la bkn sampah2 depa..last2 it is decided to arena korek lubang & humban semua. backcharge diorg (En Rc 70%,tiler 20%,lain 10%) hahaha
  2. we decided utk wat satu landfill (konon) kt belakang project area( tgk master plan) tmpt yg x terlibat dengan future developement, so situ tempat yg akan kami tanam segala sisa2 buangan dari proses demolishing bangunan n sampah2 dlm site
  3. my boss said it is very costly if we transport all the unsuitable outside, but i think it is a scarification for the sake of environment. tapi sapa nk dengar young engineer opinion kan..
proses2 backfilling...dump tanah & levelling.

proses2 dumping tanah ( kawasan lapang tepi tadika) tmpt ni akan dijadikan mock-up untuk turfing)


tempat yang mmg super rendah..dibackfill with large quantity of soil this time its already been compacted..(tiba2 water rec excavate utk tapping)..nagmuk tuan tanah...:-P...


for this area we decided utk maitain that level ( involved cutting and levelling)
pecah tanah utk boundary yg controversi telah pun bermula (this pic taken after 3 days its started)

so far x de dengar lagi kes water table tinggi or somewhat like that. bigger issue is just level, earthdrain yg perlu dijoin ngan existing earthdrain utk waterflow....




dzuli

2 comments:

  1. good job on your explanation.. this is helpful especially for me who is not a civil engineer..
    thanks!

    ReplyDelete
  2. ur welcome..but i prefer u put your name rather than anonymous ek..
    thank gak sbb visit may blog...

    ReplyDelete