1. Kev tsim cov pob zeb cement fly ash crushed yuav tsum ua raws li cov qauv tsim thiab cov xwm txheej ntawm qhov chaw, thiab ua raws li cov qauv hauv tebchaws tam sim no: (1) Cov pob zeb ntev thiab cov grouting piles yog qhov tsim nyog rau cov av sib xyaw, cov av silty, thiab cov hauv paus cuav saum toj no dej hauv av; (2) Cov pob zeb slurry drilling thiab grouting piles yog qhov tsim nyog rau cov av sib xyaw, cov av silty, cov av xuab zeb, cov av sau cuav, cov av gravelly, thiab cov txheej pob zeb uas tau hloov pauv; (3) Cov pob zeb ntev thiab cov yeeb nkab twj tso kua mis sib xyaw ua ke yog qhov tsim nyog rau cov av sib xyaw, cov av silty, cov av xuab zeb, thiab lwm yam hauv paus, nrog rau cov chaw uas muaj kev cai tswj hwm suab nrov thiab slurry; (4) Cov yeeb nkab sinking thiab grouting piles yog qhov tsim nyog rau cov av sib xyaw, cov av silty, cov av sau cuav, thiab cov txheej xuab zeb tuab uas tsis compacted.
2. Ntxiv rau kev ua raws li cov qauv hauv tebchaws tam sim no, kev tsim cov kauv ntev thiab cov yeeb nkab sab hauv twj tso kua mis sib xyaw cov khoom sib xyaw, nrog rau cov yeeb nkab sinking thiab grouting piles, kuj yuav tsum ua tau raws li cov kev cai hauv qab no: (1) Thaum lub sijhawm tsim kho, cov khoom sib xyaw yuav tsum tau npaj raws li qhov piv tsim. Qhov ntau ntawm cov dej ntxiv rau hauv lub tshuab sib tov yog tswj los ntawm qhov poob ntawm cov khoom sib xyaw. Rau kev khawb kauv ntev thiab cov yeeb nkab sab hauv twj tso kua mis sib xyaw cov khoom sib xyaw tsim, qhov poob yuav tsum yog 180-200mm, thaum rau cov yeeb nkab sinking thiab grouting pile tsim, nws yuav tsum yog 30-50mm. Tom qab tsim cov kauv, qhov tuab ntawm cov slurry ntab saum toj ntawm cov kauv yuav tsum tsis pub tshaj 200mm; (2) Tom qab drilling mus rau qhov tob tsim, rau kev khawb kauv ntev thiab cov yeeb nkab sab hauv twj tso kua mis sib xyaw cov khoom sib xyaw tsim, lub sijhawm rau kev tsa tus pas nrig laum yuav tsum tau tswj kom raug. Qhov ntim ntawm cov khoom sib xyaw pumped yuav tsum phim qhov ceev ntawm cov yeeb nkab rub kom ntseeg tau tias qhov siab ntawm cov khoom sib xyaw tseem nyob hauv cov yeeb nkab. Yog tias ntsib cov xuab zeb saturated lossis cov txheej saturated silt, lub twj tso kua mis yuav tsum tsis txhob nres tos cov khoom ntxiv. Rau kev tsim cov kav dej uas poob thiab siv cov grouting pile, qhov ceev ntawm cov kav dej yuav tsum tau tswj ntawm qhov nruab nrab linear speed, nrog rau qhov ceev ntawm cov kav dej uas tswj ntawm li 1.2-1.5m/min. Yog tias ntsib av nkos lossis av xuab zeb, qhov ceev ntawm cov kav dej yuav tsum tau qeeb qeeb; (3) Thaum lub sijhawm tsim kho, qhov siab ntawm lub pile yuav tsum siab dua qhov siab ntawm lub pile uas tau tsim. Qhov siab saum qhov siab ntawm lub pile uas tau tsim yuav tsum tau txiav txim siab raws li qhov sib nrug ntawm lub pile, daim ntawv teeb tsa pile, cov xwm txheej geological ntawm qhov chaw, thiab cov txheej txheem tsim pile, feem ntau tsis tsawg dua 0.5m; (4) Thaum lub sijhawm tsim pile, cov qauv ntawm cov khoom sib xyaw yuav tsum tau coj los ua cov blocks sim. Txhua lub tshuab yuav tsum tsim ib pawg (3 blocks) ntawm cov blocks sim (lub voos xwmfab nrog ib sab ntev ntawm 150mm) ib hnub, uas yuav tsum tau kho tus qauv rau 28d, thiab lawv lub zog compressive yuav tsum tau ntsuas; (5) Thaum lub sijhawm tsim cov kav dej pouring pile, yuav tsum tau soj ntsuam qhov cuam tshuam ntawm cov pile tshiab uas tau tsim rau cov pile uas twb tau tsim lawm. Thaum pom tias lub pile tawg thiab tsis koom nrog, cov pile engineering yuav tsum muaj lub zog static ib qho zuj zus. Lub sijhawm nias zoo li qub feem ntau yog 3 feeb, thiab qhov siab nias zoo li qub yog qhov yuav tsum tau ua kom ntseeg tau tias cov pawg tawg tau txuas nrog.
3. Lub hauv paus ntawm lub hauv paus sib xyaw ua ke tuaj yeem khawb tau los ntawm kev siv tes lossis kev siv tshuab, lossis kev sib xyaw ua ke ntawm kev siv tes thiab kev siv tshuab. Thaum kev siv tshuab thiab kev siv tes ua ke, qhov tuab ntawm kev khawb tes yuav tsum txiav txim siab los ntawm kev khawb hauv qhov chaw kom ntseeg tau tias qhov tawg ntawm kev khawb tshuab tsis qis dua qhov siab ntawm qab ntawm lub hauv paus, thiab cov av ntawm cov pawg tsis raug cuam tshuam.
4. Yuav tsum siv txoj kev static compaction rau kev tso cov txheej cushion. Thaum cov dej hauv av ntawm cov pawg hauv qab qhov chaw hauv qab ntawm lub hauv paus me me, txoj kev dynamic compaction kuj siv tau.
5. Thaum lub sijhawm tsim kho, qhov kev hloov pauv uas tso cai rau qhov ntev ntawm lub pawg yog 100 hli, rau lub pawg txoj kab uas hla yog 20 hli, thiab rau qhov ntsug yog 1%. Rau lub hauv paus puv nrog cov pawg uas tau teeb tsa ua ib kab, qhov kev hloov pauv uas tso cai rau qhov chaw ntawm pawg yog 0.5 npaug ntawm lub cheeb ntawm pawg; rau lub hauv paus kab, qhov kev hloov pauv uas tso cai rau qhov chaw ntawm pawg uas perpendicular rau lub axis yog 0.25 npaug ntawm lub cheeb ntawm pawg, thiab rau qhov kev taw qhia raws lub axis, nws yog 0.3 npaug ntawm lub cheeb ntawm pawg. Qhov kev hloov pauv uas tso cai rau qhov chaw ntawm pawg hauv ib kab ntawm cov pawg yuav tsum tsis pub tshaj 60 hli.
Lub sijhawm tshaj tawm: Lub Rau Hli-04-2025