Daim ntawv thov ntawm MAAs grouting twj tso kua mis nyob rau hauv cov kev txhawb nqa ua ntej, grouting tom qab kev thawj zaug hauv ob sab hauv tsev, thiab kev txhawb nqa ntawm qaug zog ib puag ncig pob zeb.
CEMENT GROUTING TWJ
Ua ntej Pre-grouting:
1. Ua haujlwm: Ua ntej lub qhov kev khawb ntawm cov stratum nyob rau hauv ntej yuav ua rau muaj kev sib tsoo thiab tsim kev nyab xeeb thiab ruaj khov rau kev tsim kho tom ntej.
2. Cov txheej txheem ua haujlwm: Ua ntej, raws li cov ntaub ntawv tshawb fawb garological thiab tsim qauv, tho qhov chaw nyob, qhov tob thiab kaum sab xis ntawm lub qhov cub. Feem ntau hais lus, lub qhov tob tob yuav raug txiav txim siab raws li cov caj dab los ua qhov ntau ntawm cov stratum kom pab tau, feem ntau} meters sab nraum lub qhov sab nraud pas dej contour kab. Tom qab ntawd, ntxig rau cov yeeb nkab grouting rau hauv borehole thiab txuas cov cement groouting twj tso kua mis thiab cov yeeb nkab grouting. Pib lubCEMENT GROUTING TWJThiab txhaj nyem Cement slurry rau hauv stratum raws li cov qauv tsim tawm thiab cov khoom lag luam. Thaum lub sij hawm cov txheej txheem grouting, cov kev hloov pauv hauv grouting siab thiab grouting ntim yuav tsum tau pom zoo. Thaum lub siab nce toj tus qauv tsim thiab cov grouting ntim maj mam txo, nws tuaj yeem raug txiav txim siab tau hais tias kev ua tiav tau ua tiav cov nyhuv xav tau.
Backfill grouting qab thawj zaug txhawb:
1. Ua Haujlwm: Tom qab kev txhawb nqa thawj zaug ua tiav, muaj qee qhov khoob ntawm lub pob zeb npuaj thiab cov pob zeb puag ncig. Cov khoob no tuaj yeem sau tau los ntawm backfill grouting, yog li ntawd thawj lub pob zeb ua ke tau sib xyaw ua ke, ua ke liam cov pob zeb nyob ib puag ncig, thiab txhim kho kev ruaj ntseg ntawm cov qauv kev txhawb nqa.
2. Cov txheej txheem ua haujlwm: thaum lub sijhawm ua haujlwm txhawb, ua kom lub qhov yuav tsum tau tshwj tseg rau saum npoo ntawm npuaj teg, feem ntau ib leeg {1}} meters. Tom qab lub pob txha caj dab mus txog qee lub zog, cov grouting yeeb nkab yog muab tso rau hauv lub grouting lub qhov thiab MAAs grouting twj tau txuas rau grouting. Thaum grouting, pib los ntawm hauv qab ntawm lub qhov thiab taug los hauv qab mus rau sab saum toj kom ntseeg tau tias cov slurry tuaj yeem sau qhov sib txawv. Thaum lub slurry overflows los ntawm lub qhov ib sab grouting lub qhov, nws txhais tau hais tias ntu tau sau tag nrho, thiab lub grouting tuaj yeem nres thiab grouts grouting tom ntej tuaj yeem ua haujlwm.
Grouting qab lub ob sab hauv ob sab hauv:
1. Muaj nuj nqi: qhov thib ob hauv ob sab hauv yog qhov tseem ceeb ntawm cov qauv lub qhov. Grouting qab lub pob hauv ob sab hauv tuaj yeem sau cov kis me me ntawm cov kab mob tsis sib xws, thiab tseem txhim kho kev ruaj ntseg hauv av ntawm cov qauv hauv ob sab.
2. Cov txheej txheem kev ua haujlwm: thaum kev tsim kho hauv ob sab phlu ob sab hauv, cov kav dej grouting yuav tsum tau ua ntej rau hauv cov pob zeb ua ntej. Feem ntau, ib qho yeeb nkab tau teeb tsa txhua 5-8 meters nyob rau hauv koov thiab sab phab ntsa. Thaum cov pob zeb thib ob hauv cov qhob nce ntau dua 70% ntawm kev tsim lub zog, grouting cov haujlwm tau pib. Siv aCEMENT GROUTING TWJTxhawm rau kom muaj cov cement slurry lossis lwm yam uas haum slurry rau sab nraum qab ntawm ob sab phlu. Lub taub hau grouting feem ntau tswj tau nruab nrab ntawm {0}}}}. 0MPA. Thaum lub sij hawm cov txheej txheem grouting, them sai sai rau qhov ntws ntawm cov slurry thiab cov kev hloov pauv ntawm cov teeb meem xws li slurry leakage los yog ob lub deformation.
Qhov dej thaiv cov dej txhaws:
1. Muaj nuj nqi: Thaum lub qhov chaw hla dhau ntawm cov dej ntws los ntawm cov dej ntws tawm hauv av, thiab ua kom qhov kev siv hluav taws xob ib txwm muaj thiab kev nyab xeeb.
2. Cov txheej txheem ua haujlwm: Ua Ntej, Ua cov ncauj lus kom ntxaws ntawm qhov chaw dej xau los txiav txim siab qhov chaw, dej ntim kev taw qhia ntawm lub ntsej muag xau. Tom qab ntawd, tho qhov nyob ib ncig ntawm lub ntsej muag xau. Qhov kev txiav txim siab drilling yuav tsum txiav txim siab raws li qhov xwm txheej xau thiab stratum tej yam kev mob. Feem ntau, nws yuav tsum mus tob rau hauv cov xau dej lossis aquifer. Tom qab ntxig cov yeeb nkab grouting rau hauv lub plab zom mov, siv cov dej xau rau kom huv si Thaum grouting, kho cov slurry sib tov thiab grouting ceev raws li cov dej xau kom ntseeg tau tias cov slurry tuaj yeem ntsaws cov xau xau.
Kev txhawb nqa lub zog uas tsis muaj neeg nyob ib puag ncig pob zeb:
1. Muaj nuj nqi: Rau qaug zog ib puag ncig cov pob zeb ua ke, thiab cov nyom ntawm cov pob zeb puag ncig ua ke, thiab ua kom muaj kev sib tsoo thiab kev sib hais haum tom qab lub qhov khawb.
2. Cov txheej txheem ua haujlwm: Raws li cov khoom faib tawm thiab cov yam ntxwv ntawm cov kev ua kom tsis muaj zog ntawm cov pob zeb uas tsis muaj zog, suav nrog cov kab grouting grouting lub qhov thiab xaiv cov ntaub ntawv cog lus. Feem ntau, cov grouting qhov yog npaj rau plum tawg paj los yog cov duab sib dhos, thiab lub qhov ncauj sib nraus, feem ntau {{}} meters. Tom qab drash nrog lub laum, ntxig rau cov yeeb nkab grouting thiab txuas cov CEMENT grouting twj tso kua mis rau grouting. Thaum lub sij hawm cov txheej txheem grouting, cov grouting siab thiab grouting ntim yuav tsum tau hloov kho kom ntseeg tau tias cov sletring rocky thiab ua tiav qhov txiaj ntsig zoo.