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Txoj kev zoo li qub drilling thiab cov hauv paus hniav yog siv cov txheej txheem zoo li qub drilling thiab cov txheej txheem cog qoob loo los ua qhov drilling, sib sib zog nqus sib xyaw thiab hauv qab nthuav dav grouting sib tov, thiab thaum kawg cog cov pob zeb prefabricated, uas txhais tau hais tias ua ntej tensioned prestressed pob zeb slub pawg (PHDC), ua ntej. tensioned Txawv specifications thiab qauv ntawm prestressed qhob yeeb nkab piles (PHC) thiab composite reinforced prestressed qhob yeeb nkab piles (PRHC) yog ua ke nyob rau hauv ntau yam ua ke kom tau raws li qhov yuav tsum tau tsim, thiab yog nqa tawm raws li drilling, hauv qab expansion, grouting, implantation thiab lwm yam txheej txheem. . Txoj kev tsim kho ntawm pawg hauv paus. Vim yog cov yam ntxwv ntawm txoj kev tsim kho ntawm cov pob zeb zoo li qub thiab cov hauv paus hauv paus, pawg lub cev tuaj yeem dhau los ntawm ntau yam geological interlayers, thiab cov kab ntawm pawg yog 500 ~ 1200mm. Tam sim no, qhov siab tshaj plaws kev tsim kho qhov tob tuaj yeem ncav cuag li 85 meters hauv av, thiab cov pawg tog tog ntawm ib lub tshuab tuaj yeem ncav cuag ntau dua 300m ib hnub, thiab cov txiaj ntsig kev lag luam siab. rau lwm hom pawg.
1. Cov yam ntxwv ntawm txoj kev tsim kho
① Tsis muaj av extrusion, tsis muaj kev vibration, tsis tshua muaj suab nrov; daws cov teeb meem kev tsim kho ntawm cov av nkos ib txwm khaws cov pob qhov ntawm phab ntsa vau, tswj sediment, thiab av nkos;
② Cov cuab yeej hauv qab tshwj xeeb nthuav dav, cov kab hauv qab nthuav dav yog 1 ~ 1.6 npaug ntawm lub qhov taub, lub hauv qab nthuav dav qhov siab yog 3 npaug ntawm txoj kab uas hla drilling, pawg zoo yog qhov zoo, pawg saum toj kawg nkaus yog tswj tau tag nrho, thiab kev tsim kho zoo. yooj yim tswj;
③ Muab cov pob zeb prefabricated rau hauv lub qhov borehole, thiab cov cement av solidifies tsim cov cement av-pob txhav pawg lub cev, thiab cov cement slurry sab nraud muaj kev tiv thaiv tseem ceeb ntawm lub cev pawg;
④ Muaj zog ntsug compression, rub tawm thiab kab rov tav load kuj;
Los ntawm kev siv ntau yam pawg xws li xyoob pawg thiab cov pawg sib xyaw ua ke, nrog rau kev nthuav dav hauv qab thiab cov txheej txheem grouting, compression, rub tawm thiab kab rov tav muaj peev xwm ntawm pawg hauv paus tau txhim kho zoo heev;
⑤ txuag hluav taws xob thiab kev tiv thaiv ib puag ncig;
Piv nrog rau cov dhuav pawg nyob rau hauv tib yam kev mob: kev tsim kho dej txuag 90%, kev siv hluav taws xob txuag 40%, av nkos txo 70%, kev tsim kho kev ua haujlwm nce 50%, nqi txuag 10% ~ 20%;
⑥ ntau hom qauv;
Raws li cov yam ntxwv kev ntxhov siab ntawm pawg, ntau hom pawg tuaj yeem ua ke, raws li hauv qab no:
2. Txheej txheem txheej txheem
Cov txheej txheem ntawm qhov sib xyaw ntawm cov laum yeeb nkab thiab auger laum yeeb nkab hauv kev ua haujlwm qhuav tau txais yuav, lub qhov yog drilled raws li qhov tsim qhov tob, thiab pawg kawg yog reamed raws li qhov tsim loj (inch thiab qhov siab). Tom qab cov txheej txheem tiav lawm, pawg kawg cement slurry thiab cov cement slurry nyob ib ncig ntawm pawg yog drilled thaum grouting. Tom qab qhov drilling tiav lawm, pawg yog cog rau ntawm tus qauv tsim los ntawm nws tus kheej qhov hnyav ntawm pawg, thiab cov ntsiab lus ntawm pawg thiab cov cement slurry nyob ib ncig ntawm pawg yog solidified, thiaj li hais tias pawg, pawg lus thiab cov cement slurry nyob ib ncig ntawm. pawg yog solidified. Tsim ib lub cev thiab nqa cov kabmob sib xyaw ua ke.
3. Kev tsim kho txheej txheem
Txoj kev zoo li qub drilling thiab rooting pawg tsim qauv yog siv tshwj xeeb SDP drilling rig los laum qhov raws li tus qauv tsim. Hauv qab ntawm lub qhov yog reamed raws li tsim txoj kab uas hla thiab qhov siab. Nqa lub laum, thiab tom qab grouting tiav lawm, cia siab rau nws tus kheej qhov hnyav ntawm pawg los cog cov pawg rau hauv kev tsim tsa, thiab ua kom cov cement slurry ntawm pawg kawg thiab nyob ib ncig ntawm pawg, kom cov pawg thiab cov khoom ruaj khov. av yog kev koom ua ke. Cov kabmob muaj peev xwm ntawm pawg yog tsuas yog tau los ntawm pawg sab kev sib txhuam thiab pawg taub hau. Txoj kev zoo li qub drilling thiab rooting pawg siv txoj kev ua kom cov kabmob muaj peev xwm ntawm pawg lus los ntawm kev nthuav dav hauv qab ntawm pawg, thiab ua rau muaj kev sib txhuam ntawm pawg sab los ntawm kev txhaj tshuaj cement slurry rau hauv pawg, uas tuaj yeem muab kev ua si tag nrho rau lub tog raj kheej. qhov zoo ntawm lub zog siab ntawm prefabricated pawg lub cev thiab txhim kho cov kabmob muaj peev xwm ntawm lub hauv paus pawg.
Cov kauj ruam ntawm kev tsim kho:
Drilling: Drilling rig positioning, xaiv qhov tsim nyog drilling ceev raws li geological tej yam kev mob, thaum lub sij hawm drilling txheej txheem, txhaj dej los yog bentonite sib tov raws li geological tej yam kev mob, trimming lub cev lub cev thiab tiv thaiv phab ntsa;
Hauv qab nthuav dav: Tom qab lub trimming tiav lawm, lub hauv qab ntawm pawg yog qhib rau laum qhov los nthuav lub tis los ntawm cov kws txawj controllable hydraulic technology, thiab hauv qab yog nthuav nyob rau hauv feem raws li lub expansion tis txoj kab uas hla. Thiab los ntawm kev tswj cov cuab yeej los saib xyuas qhov kev nthuav dav hauv qab hauv lub sijhawm;
Pile kawg cement slurry txhaj tshuaj: Tom qab kev nthuav dav hauv qab ua tiav, pawg kawg cement slurry raug txhaj, thiab cov pob zeb drilling tau rov ua dua thiab txo qis thaum txhaj tshuaj kom ntseeg tau tias txhua qhov hauv qab nthuav dav tau txhaj thiab pawg kawg cement slurry yog uniform. ;
Txhaj cov cement slurry nyob ib ncig ntawm pawg thiab rub tawm lub laum: Tom qab txhaj cov cement slurry ntawm pawg kawg, pib rub tawm lub laum yeeb nkab, txhaj cov cement slurry nyob ib ncig ntawm pawg thiab do ntau zaus;
Pile cog thiab xa khoom pawg: Tom qab lub tshuab drilling rub tawm tag nrho cov laum kav, pib cog pawg. Thaum lub sij hawm cog cov txheej txheem, saib xyuas txhua lub sijhawm kom ntseeg tau qhov tseeb ntawm pawg thiab xyuas kom meej qhov tob ntawm pawg cog;
Ua haujlwm: Txav mus rau pawg tom ntej thiab rov ua cov kauj ruam saum toj no;
Plaub, qhov Scope ntawm daim ntawv thov ntawm txoj kev tsim kho
①Suitable rau bearing ntsug compression, rub tawm thiab kab rov tav loads;
② Cohesive av, silt, xuab zeb av, sau av, crushed (gravel) rocky av, thiab pob zeb formations nrog complex geological tej yam kev mob, ntau interlayers, uneven weathering, thiab loj hloov nyob rau hauv hardness thiab softness;
③Thaum muaj cov tsev (cov qauv) lossis cov kav dej hauv av thiab lwm qhov chaw tsim khoom nyob ze ntawm qhov chaw tsim kho, cov av squeezing nyhuv yuav tsum tau tswj;
④ Cov av zoo uas nyuaj rau cov dhuav pawg los ua qhov, xws li cov xuab zeb tuab thiab pebble interlayers los yog cov av av uas muaj cov dej noo siab (cov av reclamation);
⑤ Qhov tob ntawm cov kabmob stratum sib txawv heev, thiab nws nyuaj rau txiav txim lub stratum; lub hauv paus ntawm cov av mos, lub hauv paus tsis muaj qhov tsim nyog bearing stratum;
⑥ Muaj cov txheej txheem qub hauv av thiab txheej txheej slag ntau dua 3 meters rov qab rau ntawm qhov chaw.
5. Static drilling thiab rooting txoj kev khoom siv
Cov cuab yeej zoo li qub drilling thiab cov txheej txheem hauv paus yog feem ntau yog kev tsim kho txoj kev drilling rig nrog ib pawg ncej. Thaum xub thawj, nws tau siv nrog ib qho kev sib tw ua ke rau kev tsim kho, uas yuav tsum tau siv ntau qhov sib ntxiv ntawm cov kav dej, thiab kev tsim kho kev ua haujlwm tsawg. Tam sim no nws yog feem ntau txawm peem rau nrog ib tug ob-txoj kev pawg thav duab, thiab ob txoj kev tsim drilling rigs raug tshem tawm nyob rau tib lub sij hawm. Drilling alternately Thaum tus ncej siv, qhov tob tuaj yeem ncav cuag 85m, uas zoo heev txhim kho kev tsim kho.
Cov cuab yeej zoo li qub drilling thiab rooting txoj kev siv cov cuab yeej ntse tsim kho software los saib xyuas cov txheej txheem tsim kho hauv lub sijhawm tiag tiag kom ntseeg tau tias kev tsim kho zoo. Ntau cov ntaub ntawv tsim kho tau pom meej meej ntawm cov zaub thiab khaws cia cia.
Lub laum me ntsis txais cov roj siab hauv qab kev nthuav dav technology, hauv qab txoj kab uas hla yog 1 ~ 1.6 npaug ntawm qhov drilling txoj kab uas hla, thiab hauv qab expansion qhov siab yog 3 npaug ntawm txoj kab uas hla; Raws li qhov sib txawv geological tej yam kev mob, kev tsim kho muaj peev xwm xaiv ib tug general-lub hom phiaj xyaum xyaum los yog ib tug tshwj xeeb xyaum;
Universal laum me ntsis: haum rau cov av xuab zeb
Kev xyaum tshwj xeeb:
Nyob rau hauv xyoo tas los no, txoj kev zoo li qub drilling rooting tau siv dav hauv Shanghai, Ningbo, Hangzhou thiab nws cov nroog nyob ib puag ncig, muab ntau txoj kev xaiv rau pawg hauv paus kev tsim kho, thiab lwm yam kev tsim kho tshwj xeeb thiab cov qauv txheej txheem kuj tau tsim ib qho tom qab. Ib hom tshiab ntawm pawg hauv paus kev tsim kho uas yog ntsuab thiab ib puag ncig tus phooj ywg, muaj kev tsim kho siab thiab ua haujlwm zoo hauv pawg, thiab tsim nyog ntawm kev txhawb nqa ntxiv.
Post lub sij hawm: Aug-11-2023