Kev tsim tawm hlau pawg COFFerdam kev tsim kho yog ib qhov project nqa tawm hauv dej lossis ze dej, tsom mus tsim ib qho chaw qhuav thiab nyab xeeb rau kev tsim kho. Kev siv tsis xwm yeem los yog tsis ua tiav qhov kev cuam tshuam yog qhov kev cuam tshuam ntawm cov dej, thiab lwm yam ntawm dej hiav txwv thaum tsim kev tsim kho kev nyab xeeb.
Lub ntsiab txheej txheem thiab kev tswj kev nyab xeeb cov ntsiab lus ntawm steel ntawv pawg COFFFERDDDAM SIV:
I. Kev Tsim Kho Txheej Txheem
1. Siv kev tsim khoom
○ Nyem kev kho
Cov tshuab sau ua ke tsim nyog yuav tsum tau cog cov txheej txheej los ntawm txheej (cov pom zoo txheej tuab yog ≤30CMM) kom ntseeg tau tias cov kabmob muaj peev xwm ua tau raws li cov kev ua haujlwm ntawm kev ua haujlwm.
Txoj kab nqes ntawm cov kua dej ntws yuav tsum ≥1%, thiab lub tank tortimentation yuav tsum tau teeb tsa kom tsis txhob muaj cov thaiv kom txhob ua kom cov tawv.
○ Npaj
Xaiv cov ntawv hlau: Xaiv hom Pile raws li kev tshaj tawm geological (xws li Larsen IV hom rau cov av IV thiab u ntaus rau pob zeb).
Txheeb xyuas kev ncaj ncees ntawm lub ntsuas phoo: thov butter lossis sealant ua ntej los tiv thaiv kev xau.
2. Kev Ntsuas thiab Kev Tso Cai
Siv tag nrho cov chaw nres tsheb kom pom txhua 10M, teeb tsa cov qauv tsim thiab nce siab AURS5CM).
3. Coj cov ncej nruab
Qhov sib nrug ntawm ob-kab steel qhia cov kab teeb yog 1 ~ 2cm loj dua qhov dav ntawm cov ntawv steel piles kom ntseeg tau tias qhov kev sib txawv ntawm kev sib txawv yog tsawg dua 1%.
Cov kab teeb phau duab yuav tsum tau kho los ntawm cov vuam hlau vuam lossis bolting kom tsis txhob poob lub caij thaum lub caij piling.
4. Cov ntawv hlau txheej txheem sib tw
○ Kev tsav tsheb ua ntu zus: pib los ntawm cov sib txawv ntawm kaum, kaw qhov sib txawv raws li ib nrab mus rau hauv nruab nrab, lossis siv "screen-style" pab pawg ib pawg).
Tswj Kev Tswj Xyuas:
Txoj kev sib txawv ntawm cov pawg thawj yog ≤0.5%, thiab cov Pile lub cev txuas ntxiv yog "tau tsav tsheb".
Tus nqi tsav tsheb tus nqi: ≤1M / min yog cov dej hauv cov dej xau, thiab cov txheej dej siab rau hauv av nyuaj.
○ Kev kho kom raug kaw: yog tias qhov sib kis uas seem tsis tuaj yeem tso nrog cov qauv piles, siv cov pa hluav taws xob tshwj xeeb (xws li wedge pass) lossis weld kaw.
5. Lub hauv paus nkag mus khawb thiab tso dej
○ ToofesDed Excavation (txhua txheej ≤2M), txhawb nqa spacing, in≤1M (thawj zaug txhawb nqa yog ≤3m los ntawm sab saum toj ntawm lub qhov ncauj).
○ Kev sau dej dej yog 20 ~ 30m, thiab cov twj tso kua mis tau siv rau kev nqus tawm tas li.
6. Backfill thiab pawg extraction
Kev thim rov qab yuav tsum tau ua kom haum rau cov khaubncaws sab nraud povtseg hauv txheej txheem (cov txheej txheem sib dhos ≥ 90%) kom tsis txhob muaj kev cuam tshuam ntawm lub coferdam vim muaj kev txiav txim siab tsis zoo.
Pawg Extraction Sequactence: Tshem tawm los ntawm nruab nrab rau ob sab hauv kev sib nrug, thiab txhaj dej los yog xuab zeb ib txhij los txo cov av cuam tshuam.
Ii. Kev Tswj Xyuas Kev Nyab Xeeb
1. Kev tswj hwm kev pheej hmoo
○ umpturning: Lub sijhawm soj ntsuam tiag tiag ntawm cov celferdam deformation (ncua kev tsim kho thiab txhawb nqa thaum tus lej tsis loj tshaj 2%).
○ anti-to feakage: Tom qab pheeb, dai mesh rau sab hauv kom tshuaj tsuag grout lossis nteg dej waterproof geotextile.
○ anti-drowning: teeb tsa tus saib xyuas (qhov siab ≥ 1.2m) thiab romebuoy / hlua ntawm cov haujlwm platform.
2. Teb rau cov kev ua haujlwm tshwj xeeb
○ Tseem kav: nres ua haujlwm 2 teev ua ntej nthwv dej siab thiab khij cov khoom sib khi ntawm COFERERDAM.
Nag Nag Nag Nag Nag Nag Nag Nag Lis Ke Ua Ntej Pav Ua Ntej thiab Pib Lub Packup Kua Dej (xws li cov twj tso kua dej siab).
3. Kev tswj hwm ib puag ncig
Muam mud sedimation kev kho mob: teeb tsa peb-theem voentimation tank thiab tso nws tom qab ntsib cov qauv.
○ Suab nrov tswj: txwv cov cuab yeej siv siab nyob rau thaum tsaus ntuj tsim (xws li siv cov neeg tsav tsheb zoo li qub.
Ⅲ. Qhov tseem ceeb ntawm cov tsis tau siv
IV. Cov teeb meem thiab kev kho mob
1. Pile deviation
Cause: Cov khoom tawv nyob rau hauv cov av txheej los yog tsis ncaj ncees lawm ntawm piling.
Kev Kho Mob: Siv "kho cov pawg" kom thim kev txhaj tshuaj lossis pawg hauv zos puv.
2. Xauv Qaum
Kev kho mob: Sau cov av av nplaum nyob sab nraud thiab txhaj tshuaj polyurethane ua npuas ncauj rau sab hauv.
3. Lub Hauv Paus Paus
Kev Tiv Thaiv: Ua kom ceev cov kev tsim kho cov hauv qab phaj thiab txo lub sijhawm raug.
V. Cov Ntsiab Lus
Kev tsim kho ntawm steel ntawv pawg COFFerdams yuav tsum tsom rau cov qauv "ruaj khov), thiab kev kaw ruaj khov (thiab kho kom haum cov txheej txheem ua ke nrog geological. Rau cov chaw lim dej tob lossis cov txheej txheem nyuaj, "txhawb nqa" lossis "sib xyaw ua ke pawg + qhob anti-singpage phab ntsa) cov phiaj xwm tuaj yeem tau saws. Nws cov kev tsim kho muaj cov sib xyaw ua ke ntawm kev quab yuam thiab lub zog. Qhov zoo kawg nkaus ntawm tus txiv neej thiab xwm tuaj yeem ua kom cov kev txhim kho du ntawm kev tsim kho thiab txo cov kev puas tsuaj thiab pov tseg ntawm cov khoom siv ntuj.
If you have any further questions or demands, please feel free to contact Ms. Wendy. wendy@jxhammer.com
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Lub sij hawm ncua: Mar-10-2025