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中文Nyob rau hauv xyoo tas los no, TRD txoj kev tsim kho tau siv ntau thiab ntau dua hauv Suav teb, thiab nws daim ntawv thov hauv tshav dav hlau, kev txuag dej, kev tsheb ciav hlau thiab lwm yam kev tsim kho vaj tse kuj nce ntxiv. Ntawm no, peb yuav tham txog cov ntsiab lus tseem ceeb ntawm TRD kev tsim kho thev naus laus zis siv Xiongan Tunnel nyob rau hauv qhov chaw hauv av ntawm Xiongan Tshiab Cheeb Tsam ntawm Xiongan Xin High-speed Railway ua keeb kwm yav dhau. Thiab nws siv tau nyob rau sab qaum teb cheeb tsam. Cov txiaj ntsig kev sim qhia tau tias TRD txoj kev tsim kho muaj cov phab ntsa zoo thiab kev tsim kho siab, uas tuaj yeem ua tau raws li kev tsim kho. Daim ntawv thov loj ntawm TRD txoj kev tsim kho hauv qhov project no kuj ua pov thawj qhov kev siv ntawm TRD txoj kev tsim kho nyob rau sab qaum teb. , muab ntau cov ntaub ntawv siv rau TRD kev tsim kho nyob rau sab qaum teb.
1. Qhov project Overview
Lub Xiongan-Xinjiang High-speed Railway yog nyob rau hauv nruab nrab ntawm North Tuam Tshoj, khiav hauv Hebei thiab Shanxi xeev. Nws khiav roughly nyob rau sab hnub tuaj-sab hnub poob. Txoj kab pib los ntawm Xiongan Chaw nres tsheb hauv Xiongan New District nyob rau sab hnub tuaj thiab xaus ntawm Xinzhou West Chaw nres tsheb ntawm Daxi Railway nyob rau sab hnub poob. Nws hla Xiongan New District, Baoding City, thiab Xinzhou City. , thiab txuas nrog Taiyuan, lub nroog ntawm Shanxi Province, ntawm Daxi Neeg nrog caij Express. Qhov ntev ntawm txoj kab tshiab tshiab yog 342.661 km. Nws yog ib qho tseem ceeb kab kab rov tav rau txoj kev tsheb ciav hlau ceev ceev hauv "plaub ntsug thiab ob kab rov tav" thaj tsam ntawm Xiongan Tshiab Cheeb Tsam, thiab tseem yog "Txoj Haujlwm Nruab Nrab thiab Lub Sijhawm Dav Hlau Network Plan" "Eight Vertical thiab Eight Kab rov tav. " high-speed railway main channel yog ib feem tseem ceeb ntawm Beijing-Kunming Corridor, thiab nws txoj kev tsim kho tseem ceeb heev rau kev txhim kho txoj kev sib txuas.
Muaj ntau qhov kev sib tw tsim nyob rau hauv qhov project no. Ntawm no peb coj nqe lus 1 los ua piv txwv los tham txog daim ntawv thov kev tsim kho TRD. Txoj kev tsim kho ntawm ntu kev sib tw no yog qhov nkag ntawm Xiongan Tunnel tshiab (Section 1) nyob hauv Gaoxiaowang Village, Rongcheng County, Baoding City. Txoj kab pib los ntawm Nws hla qhov nruab nrab ntawm lub zos. Tom qab tawm hauv lub zos, nws nqes los ntawm Baigou coj tus dej, thiab ces txuas mus rau sab qab teb ntawm Guocun mus rau sab hnub poob. Sab hnub poob kawg yog txuas nrog Xiongan Intercity Station. Lub sijhawm pib thiab xaus ntawm qhov av yog Xiongbao DK119+800 ~ Xiongbao DK123+050. Lub qhov dej nyob hauv Baoding Lub nroog yog 3160m hauv Rongcheng County thiab 4340m hauv Anxin County.
2. Txheej txheem cej luam ntawm TRD tsim
Hauv qhov project no, cov cement-av sib xyaw phab ntsa ntawm qhov sib npaug thickness muaj phab ntsa qhov tob ntawm 26m ~ 44m, phab ntsa thickness ntawm 800mm, thiab tag nrho square meter ntim ntawm kwv yees li 650,000 square meters.
Cov cement-av sib xyaw phab ntsa ntawm vaj huam sib luag thickness yog ua los ntawm P.O42.5 zoo tib yam Portland cement, cov ntsiab lus cement tsis tsawg dua 25%, thiab dej-cement piv yog 1.0 ~ 1.5.
Phab ntsa verticality sib txawv ntawm cov cement-av sib xyaw phab ntsa ntawm qhov sib npaug ntawm cov thickness yuav tsum tsis txhob ntau tshaj 1/300, phab ntsa txoj hauj lwm sib txawv yuav tsum tsis txhob siab tshaj +20mm ~ -50mm (qhov sib txawv rau hauv lub qhov yog qhov zoo), phab ntsa qhov tob Qhov sib txawv yuav tsum tsis txhob ntau tshaj 50 hli, thiab cov phab ntsa thickness yuav tsum tsis txhob tsawg tshaj li tus tsim phab ntsa thickness, qhov sib txawv yog tswj ntawm 0 ~ -20 hli (tswj qhov loj sib txawv ntawm lub thawv txiav hniav).
Tus qauv tus nqi ntawm qhov tsis muaj zog compressive ntawm cov cement-av sib xyaw phab ntsa ntawm cov tuab tuab tom qab 28 hnub ntawm cov tub ntxhais drilling tsis tsawg dua 0.8MPa, thiab phab ntsa permeability coefficient tsis ntau dua 10-7cm / s.
Qhov sib npaug-thickness cement-av mixing phab ntsa txais cov txheej txheem phab ntsa peb-kauj ruam (piv txwv li, thawj excavation, retreat excavation, thiab phab ntsa-forming mixing). Tom qab lub stratum excavated thiab loosened, txau thiab sib tov yog ces ua kom solidify phab ntsa.
Tom qab sib xyaw ntawm cov casas-av sib xyaw phab ntsa ntawm cov txheej txheem txiav kom ntseeg tau tias qhov chaw nyob ntawm lub thawv txiav loj thiab zoo txhawb nqa txhawm rau tiv thaiv kev tsis zoo ntawm phab ntsa mus sib hais. .
3. Geological tej yam kev mob
Geological tej yam kev mob
Cov strata nthuav tawm nyob rau saum npoo ntawm tag nrho Xiongan New Area thiab qee qhov chaw nyob ib puag ncig yog Quaternary xoob txheej. Lub thickness ntawm Quaternary sediments feem ntau yog hais txog 300 meters, thiab hom kev tsim yog feem ntau alluvial.
(1) Qhov system tshiab (Q₄)
Hauv pem teb Holocene feem ntau yog faus 7 mus rau 12 meters tob thiab feem ntau yog cov deposits alluvial. Lub sab sauv 0.4 ~ 8m yog tshiab tso silty av nplaum, silt, thiab av nplaum, feem ntau grey mus rau grey-xim av thiab daj-xim av; lub lithology ntawm qis stratum yog feem ntau sedimentary silty av nplaum, silt, thiab av nplaum, nrog rau qee qhov chaw uas muaj nplua silty xuab zeb thiab nruab nrab txheej. Cov xuab zeb txheej feem ntau muaj nyob rau hauv cov duab ntawm lub lens, thiab cov xim ntawm cov av txheej feem ntau yog daj-xim av mus rau xim av-daj.
(2) Hloov kho qhov system (Q₃)
Qhov faus qhov tob ntawm Upper Pleistocene pem teb feem ntau yog 50 txog 60 meters. Nws yog feem ntau alluvial deposits. Lub lithology feem ntau yog silty av nplaum, silt, av nplaum, silty nplua xuab zeb thiab nruab nrab xuab zeb. Cov av nplaum yog ib qho nyuaj rau yas. , cov av xuab zeb yog nruab nrab-dense mus rau ntom, thiab cov av txheej feem ntau yog grey-daj-xim av.
(3) Mid-Pleistocene system (Q₂)
Qhov faus qhov tob ntawm nruab nrab-Pleistocene pem teb feem ntau yog 70 txog 100 meters. Nws yog tsim los ntawm alluvial silty av nplaum, av nplaum, clayey silt, silty nplua xuab zeb, thiab nruab nrab xuab zeb. Cov av nplaum yog ib qho nyuaj rau yas, thiab cov xuab zeb av yog nyob rau hauv ib daim ntawv tuab. Cov av txheej feem ntau yog daj-xim av, xim av-daj, xim av-liab, thiab tan.
(4) Qhov siab tshaj plaws sab hnub tuaj pob qhov tob ntawm cov av raws kab yog 0.6m.
(5) Nyob rau hauv qeb II site tej yam kev mob, qhov yooj yim av qeeg ncov acceleration muab faib nqi ntawm qhov chaw thov yog 0.20g (degree); qhov yooj yim av qeeg acceleration teb spectrum yam ntxwv lub sij hawm muab faib nqi yog 0.40s.
2. Hydrogeological tej yam kev mob
Cov hom dej hauv av koom nrog hauv qhov kev tshawb nrhiav qhov tob ntawm qhov chaw no feem ntau suav nrog cov dej phreatic hauv cov av ntiav, me ntsis dej hauv nruab nrab silty av txheej, thiab cov dej tsis huv hauv cov xuab zeb sib sib zog nqus. Raws li geological cov ntaub ntawv, cov yam ntxwv faib ntawm ntau hom aquifers yog raws li nram no:
(1) Cov dej saum npoo av
Cov dej saum npoo av feem ntau yog los ntawm Baigou diversion River (ib feem ntawm tus dej uas nyob ib sab ntawm lub qhov yog sau los ntawm cov av pov tseg, ua liaj ua teb thiab txoj siv ntsuab), thiab tsis muaj dej hauv Pinghe River thaum lub sijhawm tshawb fawb.
(2) dhia dej
Xiongan Qhov (Section 1): faib nyob ze ntawm qhov chaw, feem ntau pom nyob rau hauv qhov ntiav ②51 txheej, ②511 txheej, ④21 av nplaum silt txheej, ②7 txheej, ⑤1 txheej ntawm silty nplua xuab zeb, thiab ⑤2 txheej xuab zeb nruab nrab. ② 7. Lub silty nplua xuab zeb txheej hauv ⑤1 thiab cov xuab zeb nruab nrab hauv ⑤2 muaj cov dej zoo dua thiab cov permeability, loj tuab, ntau dua kev faib tawm, thiab cov dej nplua nuj. Lawv yog nruab nrab rau cov dej-permeable txheej. Lub phaj saum toj kawg nkaus ntawm txheej txheej no yog 1.9 ~ 15.5m tob (qhov siab yog 6.96m ~ 8.25m), thiab cov phaj hauv qab yog 7.7 ~ 21.6m (qhov siab yog 1.00m ~ -14.54m). Lub phreatic aquifer yog tuab thiab sib npaug sib npaug, uas yog qhov tseem ceeb heev rau txoj haujlwm no. Kev tsim kho muaj kev cuam tshuam loj. Cov dej hauv av maj mam txo qis ntawm sab hnub tuaj mus rau sab hnub poob, nrog rau lub caij hloov pauv ntawm 2.0 ~ 4.0m. Qhov dej ruaj khov rau kev dhia dej yog 3.1 ~ 16.3m tob (nce 3.6 ~ 8.8m). Kev cuam tshuam los ntawm kev nkag mus ntawm cov dej saum npoo av los ntawm Baigou Diversion River, cov dej saum npoo recharges cov dej hauv av. Cov dej hauv av yog qhov siab tshaj ntawm Baigou Diversion River thiab nws thaj tsam DK116+000 ~ Xiongbao DK117+600.
(3) Cov dej txias
Xiongan Qhov (Section 1): Raws li kev soj ntsuam cov txiaj ntsig, cov dej siab-cov kabmob tau muab faib ua plaub txheej.
Thawj txheej ntawm cov dej tsis huv hauv dej muaj xws li ⑦1 nplua silty xuab zeb, ⑦2 nruab nrab xuab zeb, thiab muab faib hauv zos hauv ⑦51 clayey silt. Raws li kev faib khoom ntawm cov dej hauv av hauv cov dej hauv av ntawm qhov project, cov dej tsis huv hauv cov txheej txheem no raug suav tias yog No. 1 confined aquifer.
Qhov thib ob confined dej aquifer muaj ⑧4 nplua silty xuab zeb, ⑧5 nruab nrab xuab zeb, thiab nyob rau hauv lub zos faib nyob rau hauv ⑧21 clayey silt. Cov dej tsis huv hauv txheej no feem ntau yog faib rau hauv Xiongbao DK122 + 720 ~ Xiongbao DK123 + 360 thiab Xiongbao DK123 + 980 ~ Xiongbao DK127 + 360. Txij li No. 8 xuab zeb txheej nyob rau hauv seem no yog tsis tu ncua thiab stably faib, lub No. 84 xuab zeb txheej nyob rau hauv seem no yog finely faib. Cov xuab zeb, ⑧5 cov xuab zeb nruab nrab, thiab ⑧21 clayey silt aquifers cais cais rau hauv ob qhov dej hauv dej. Raws li kev faib khoom ntawm cov dej hauv av hauv cov dej hauv av ntawm qhov project, cov dej tsis huv hauv txheej no raug suav tias yog No. 2 confined aquifer.
Qhov thib peb txheej ntawm confined aquifer yog tsim los ntawm ⑨1 silty nplua xuab zeb, ⑨2 nruab nrab xuab zeb, ⑩4 silty nplua xuab zeb, thiab ⑩5 nruab nrab xuab zeb, uas yog faib nyob rau hauv lub zos ⑨51.⑨52 thiab (1021.⑩22 silt. Distribution from the underground section. engineering aquifer Cov yam ntxwv, txheej ntawm cov dej tsis huv no yog suav tias yog No. ③ confined aquifer.
Cov txheej plaub ntawm cov dej tsis huv yog tsim los ntawm ①3 nplua silty xuab zeb, ①4 nruab nrab xuab zeb, ⑫1 silty zoo xuab zeb, ⑫2 nruab nrab xuab zeb, ⑬3 silty xuab zeb, thiab ⑬4 nruab nrab xuab zeb, uas tau faib hauv zos hauv ①21.①22.⑫ .⑬21.⑬22 Hauv hmoov av. Raws li kev faib khoom ntawm cov dej hauv av hauv cov dej hauv av ntawm qhov project, cov dej tsis huv hauv cov txheej txheem no raug suav tias yog No. 4 confined aquifer.
Xiongan Qhov (Section 1): Qhov dej ruaj khov nce siab ntawm cov dej kaw hauv Xiongbao DK117 + 200 ~ Xiongbao DK118 + 300 seem yog 0m; Qhov ruaj khov dej theem nce siab nyob rau hauv Xiongbao DK118 + 300 ~ Xiongbao DK119 + 500 ntu yog -2m; Qhov dej ruaj khov nce siab ntawm ntu dej siab los ntawm Xiongbao DK119 + 500 rau Xiongbao DK123 + 050 yog -4m.
4. Kev sim phab ntsa
Cov dej-stop longitudinal silos ntawm qhov project no yog tswj raws li 300-meter seem. Daim ntawv ntawm cov ntaub thaiv dej-nres yog tib yam li cov ntaub thaiv dej-nres ntawm ob sab ntawm lub qhov dej uas nyob ib sab. Qhov chaw tsim kho muaj ntau lub ces kaum thiab maj mam ntu, ua rau kev tsim kho nyuaj. Nws kuj yog thawj zaug uas TRD txoj kev tsim kho tau siv rau ntawm cov nplai loj nyob rau sab qaum teb. Daim ntawv thov hauv cheeb tsam txhawm rau txheeb xyuas qhov muaj peev xwm tsim kho ntawm TRD txoj kev tsim kho thiab cov khoom siv nyob rau hauv cov xwm txheej stratum, phab ntsa zoo ntawm qhov sib npaug-thickness cement-av mixing phab ntsa, cement sib tov uniformity, lub zog thiab dej nres kev ua haujlwm, thiab lwm yam. ntau yam kev tsim kho tsis tau, thiab tsim kev ua haujlwm Ua ib qho kev sim ua ntej ua ntej.
Kev sim phab ntsa tsim cov cai:
Phab ntsa thickness yog 800mm, qhov tob yog 29m, thiab dav hlau ntev tsis tsawg tshaj li 22m;
Phab ntsa verticality sib txawv yuav tsum tsis txhob ntau tshaj 1/300, phab ntsa txoj hauj lwm sib txawv yuav tsum tsis txhob ntau tshaj +20mm ~ -50mm (qhov sib txawv rau hauv lub qhov dej yog qhov zoo), phab ntsa qhov tob sib txawv yuav tsum tsis txhob ntau tshaj 50mm, phab ntsa thickness yuav tsum tsis txhob tsawg tshaj li qhov tsim phab ntsa thickness, thiab qhov sib txawv yuav tsum tau tswj ntawm 0 ~ -20mm (tswj qhov loj deviation ntawm lub taub hau lub taub hau);
Tus qauv tus nqi ntawm lub zog tsis muaj zog ntawm cov cement-av sib xyaw phab ntsa ntawm cov tuab tuab tom qab 28 hnub ntawm cov tub ntxhais drilling tsis tsawg dua 0.8MPa, thiab phab ntsa permeability coefficient yuav tsum tsis txhob ntau dua 10-7cm / sec;
Txoj kev tsim kho:
Qhov sib npaug-thickness cement-av mixing phab ntsa txais cov txheej txheem kev tsim kho peb-kauj ruam (piv txwv li, ua ntej excavation, retreat excavation, thiab phab ntsa-forming mixing).
Phab ntsa tuab ntawm phab ntsa mus sib hais yog 800mm thiab qhov siab tshaj plaws yog 29m. Nws yog tsim los siv lub tshuab siv TRD-70E. Thaum lub sijhawm sim txheej txheem phab ntsa, cov cuab yeej ua haujlwm tau zoo ib yam, thiab qhov nruab nrab ntawm phab ntsa nce siab yog 2.4m / h.
Cov qhabnias xeem:
Kev ntsuam xyuas cov kev xav tau ntawm cov phab ntsa mus sib hais: Txij li cov phab ntsa mus sib sib zog nqus yog qhov sib sib zog nqus, qhov kev sim slurry thaiv lub zog kuaj, cov qauv ntsuas lub zog thiab kev ntsuas permeability yuav tsum tau nqa tawm sai li sai tau tom qab cov cement-av mixing phab ntsa ntawm vaj huam sib luag thickness tiav.
Slurry Test Block Test:
Unconfined compressive zog kuaj tau ua nyob rau hauv cov qauv ntawm cov cement-av mixing phab ntsa ntawm cov thickness sib npaug li 28-hnub thiab 45-hnub curing lub sij hawm. Cov txiaj ntsig yog raws li nram no:
Raws li cov ntaub ntawv soj ntsuam, qhov tsis muaj zog compressive ntawm cov cement-av sib xyaw phab ntsa cov qauv ntawm cov tuab tuab yog ntau dua 0.8MPa, ua tau raws li cov qauv tsim;
Kev xeem nkag:
Ua cov kev ntsuam xyuas permeability coefficient ntawm cov qauv ntawm cov cement-av sib xyaw phab ntsa ntawm qhov sib npaug ntawm lub sijhawm 28-hnub thiab 45-hnub kho lub sijhawm. Cov txiaj ntsig yog raws li nram no:
Raws li cov ntaub ntawv ntsuam xyuas, cov txiaj ntsig permeability coefficient nyob nruab nrab ntawm 5.2 × 10-8-9.6 × 10-8cm / sec, uas ua tau raws li cov qauv tsim;
Tsim cov cement av compressive zog kuaj:
Ib qho 28-hnub ib ntus compressive zog kuaj tau ua nyob rau ntawm qhov ntsuas phab ntsa slurry test block. Cov txiaj ntsig kev xeem tau nyob nruab nrab ntawm 1.2MPa-1.6MPa, uas ua tau raws li cov qauv tsim;
Ib qho kev sim 45-hnub ib ntus compressive zog tau ua nyob rau ntawm qhov ntsuas phab ntsa slurry test block. Cov txiaj ntsig kev xeem tau nyob nruab nrab ntawm 1.2MPa-1.6MPa, uas ua tau raws li cov qauv tsim.
5. Kev tsim kho tsis tau thiab kev ntsuas
1. Kev tsim kho tsis tau
(1) Kev tsim kho qhov tob ntawm TRD txoj kev tsim kho yog 26m ~ 44m, thiab phab ntsa thickness yog 800mm.
(2) Cov kua excavation yog tov nrog sodium bentonite, thiab cov dej-cement piv W / B yog 20. Cov slurry yog tov rau ntawm qhov chaw nrog 1000kg dej thiab 50-200kg ntawm bentonite. Thaum lub sij hawm tsim kho, cov dej-cement piv ntawm cov kua excavation tuaj yeem hloov kho raws li cov txheej txheem yuav tsum tau ua thiab tsim cov yam ntxwv.
(3) Lub fluidity ntawm excavation kua tov av yuav tsum tau tswj ntawm 150mm thiab 280mm.
(4) Cov kua excavation yog siv nyob rau hauv tus kheej-tsav txheej txheem ntawm lub thawv txiav thiab ua ntej excavation kauj ruam. Nyob rau hauv lub retreat excavation kauj ruam, cov excavation kua yog tsim nyog txhaj tshuaj raws li cov fluidity ntawm cov av nkos sib xyaw.
(5) Cov kua dej kho yog tov nrog P.O42.5 qib zoo tib yam Portland cement, nrog cov cement ntsiab lus ntawm 25% thiab dej-cement piv ntawm 1.5. Qhov sib piv ntawm cov dej-cement yuav tsum tau tswj kom tsawg kawg nkaus yam tsis tas yuav txo cov cement. ; Thaum lub sij hawm tsim kho, txhua 1500kg dej thiab 1000kg ntawm cement yog tov rau hauv slurry. Cov kua curing yog siv nyob rau hauv cov phab ntsa-tsim mixing kauj ruam thiab txiav lub thawv lifting kauj ruam.
2. Cov ntsiab lus tseem ceeb ntawm kev tswj xyuas
(1) Ua ntej kev tsim kho, xam cov kev sib koom ua ke ntawm kaum lub ntsiab lus ntawm cov kab nruab nrab ntawm cov ntaub thaiv dej-nres raws li cov duab kos duab thiab cov ntsiab lus sib koom ua ke los ntawm tus tswv, thiab tshuaj xyuas cov ntaub ntawv sib koom ua ke; siv cov cuab yeej ntsuas los teeb tsa, thiab tib lub sijhawm npaj pawg tiv thaiv thiab ceeb toom rau cov koom haum cuam tshuam Ua kev tshuaj xyuas cov kab hluav taws xob.
(2) Ua ntej kev tsim kho, siv ib theem los ntsuas qhov siab ntawm qhov chaw, thiab siv lub excavator rau qib ntawm qhov chaw; phem geology thiab underground obstacles uas cuam tshuam rau qhov zoo ntawm cov phab ntsa tsim los ntawm txoj kev tsim kho TRD yuav tsum tau hais ua ntej ua ntej mus rau txoj kev siv TRD dej-stop curtain siv; Nyob rau tib lub sijhawm, kev ntsuas tsim nyog yuav tsum tau ua kom nce cov ntsiab lus cement.
(3) Cov chaw mos thiab qis hauv zos yuav tsum tau rov qab nrog cov av hauv lub sijhawm thiab compacted txheej los ntawm txheej nrog lub excavator. Ua ntej kev tsim kho, raws li qhov hnyav ntawm TRD siv cov cuab yeej siv, kev ntsuas kev txhawb nqa xws li tso cov hlau phaj yuav tsum tau nqa tawm ntawm qhov chaw tsim kho. Kev tso cov hlau phaj yuav tsum tsis pub tsawg tshaj 2 Cov txheej yog nteg nyob rau hauv parallel thiab perpendicular mus rau cov kev taw qhia ntawm lub trench feem kom paub tseeb tias qhov chaw tsim kho raws li qhov yuav tsum tau rau lub bearing peev xwm ntawm cov cuab yeej cuab tam foundation; los xyuas kom meej qhov verticality ntawm pawg tsav tsheb thiab txiav lub thawv.
(4) Kev tsim kho ntawm cov cement-av sib xyaw phab ntsa ntawm qhov sib npaug ntawm cov thickness siv peb-kauj ruam phab ntsa tsim qauv (piv txwv li, excavation ua ntej, retreat excavation, thiab phab ntsa-forming mixing). Lub hauv paus av yog tag nrho tov, nplawm kom loosen, thiab ces solidified thiab tov rau hauv phab ntsa.
(5) Thaum lub sij hawm tsim kho, lub chassis ntawm TRD pawg tsav tsheb yuav tsum tau khaws cia nyob rau hauv kab rov tav thiab cov lus qhia pas nrig ntsug. Ua ntej kev tsim kho, ntsuas ntsuas yuav tsum tau siv los ntsuas axis los xyuas kom meej tias TRD pawg tsav tsheb yog qhov raug thiab qhov sib txawv ntsug ntawm pawg tsav tsheb kab ntawv qhia yuav tsum raug txheeb xyuas. Tsawg dua 1/300.
(6) Npaj tus naj npawb ntawm cov thawv txiav raws li qhov tsim ntawm phab ntsa qhov tob ntawm cov cement-av sib xyaw phab ntsa ntawm cov tuab tuab, thiab khawb cov thawv txiav hauv ntu kom tsav lawv mus rau qhov tob tsim.
(7) Thaum lub thawv txiav tau tsav los ntawm nws tus kheej, siv cov cuab yeej ntsuas los kho qhov tseeb ntawm pawg tsav tsheb coj pas nrig hauv lub sijhawm; Thaum ua kom ntseeg tau qhov tseeb, tswj qhov kev txhaj tshuaj ntawm cov kua excavation mus rau qhov tsawg kawg nkaus kom cov av sib xyaw ua ke nyob rau hauv lub xeev ntawm siab concentration thiab siab viscosity. txhawm rau tiv nrog kev hloov pauv stratigraphic.
(8) Thaum lub sij hawm tsim kho, qhov tseeb ntsug ntawm phab ntsa tuaj yeem tswj tau los ntawm inclinometer ntsia hauv lub thawv txiav. Lub verticality ntawm phab ntsa yuav tsum tsis txhob siab tshaj 1/300.
(9) Tom qab kev teeb tsa ntawm inclinometer, pib nrog kev tsim kho ntawm cov cement-av sib xyaw phab ntsa ntawm qhov sib npaug. Lub phab ntsa tsim nyob rau tib hnub yuav tsum sib tshooj ntawm phab ntsa tsim los ntawm tsis pub tsawg tshaj 30cm ~ 50cm; qhov sib tshooj yuav tsum xyuas kom meej tias lub thawv txiav yog ntsug thiab tsis tilted. Do maj mam thaum lub sij hawm tsim kho kom tag nrho sib tov thiab do cov kua curing thiab cov av nkos sib xyaw kom ntseeg tau sib tshooj. zoo. Lub schematic daim duab ntawm overlapping kev tsim kho yog raws li nram no:
(11) Tom qab kev tsim kho ntawm ntu ntawm lub ntsej muag ua haujlwm tiav, lub thawv txiav raug rub tawm thiab decomposed. Tus tswv tsev TRD yog siv ua ke nrog lub crawler crane los rub tawm lub thawv txiav ua ntu zus. Lub sijhawm yuav tsum tau tswj tsis pub dhau 4 teev. Nyob rau tib lub sijhawm, qhov sib npaug ntawm cov av sib xyaw yog txhaj rau hauv qab ntawm lub thawv txiav.
(12) Thaum rub tawm lub thawv txiav, lub siab tsis zoo yuav tsum tsis txhob tsim tawm hauv lub qhov los ua kom muaj kev sib haum xeeb ntawm lub hauv paus ib puag ncig. Kev khiav hauj lwm ntawm lub twj tso kua mis grouting yuav tsum tau kho raws li qhov ceev ntawm rub tawm lub thawv txiav.
(13) Txhim kho kev tu cov cuab yeej. Txhua qhov kev hloov pauv yuav tsom mus rau kev kuaj xyuas lub zog, saw, thiab cov cuab yeej txiav. Nyob rau tib lub sijhawm, lub tshuab hluav taws xob thaub qab yuav raug teeb tsa. Thaum cov khoom siv hluav taws xob tsis zoo yog qhov txawv txav, cov khoom siv pulp, cua compression, thiab kev sib xyaw ua haujlwm tuaj yeem rov ua haujlwm raws sijhawm thaum muaj hluav taws xob poob. , kom tsis txhob ncua sij hawm ua rau kev sib tsoo drilling.
(14) Txhim khu kev soj ntsuam ntawm TRD txheej txheem kev tsim kho thiab kev soj ntsuam zoo ntawm cov phab ntsa tsim. Yog tias pom muaj teeb meem zoo, koj yuav tsum tiv tauj tus tswv, tus saib xyuas thiab chav tsim qauv kom muaj kev kho kom haum raws sij hawm kom tsis txhob muaj kev puas tsuaj.
6. Cov lus xaus
Tag nrho cov square footage ntawm qhov project no qhov sib npaug-thickness cement-av mixing phab ntsa yog kwv yees li 650,000 square meters. Tam sim no nws yog qhov project nrog qhov loj tshaj plaws TRD kev tsim kho thiab tsim ntim ntawm domestic high-speed rail qhov project. Tag nrho ntawm 32 TRD cov cuab yeej tau nqis peev, uas Shanggong Machinery's TRD series cov khoom lag luam suav txog 50%. ; Daim ntawv thov loj ntawm TRD txoj kev tsim kho hauv qhov project no qhia tau hais tias thaum TRD kev tsim kho txoj kev siv los ua cov ntaub thaiv dej-nres nyob rau hauv qhov project high-speed railway tunnel project, qhov verticality ntawm phab ntsa thiab cov phab ntsa tiav yog qhov zoo. guaranteed, thiab cov cuab yeej muaj peev xwm thiab kev ua haujlwm tau zoo tuaj yeem ua tau raws li qhov yuav tsum tau ua. Nws kuj tseem ua pov thawj tias TRD txoj kev tsim kho tau zoo hauv Kev siv tau nyob rau sab qaum teb thaj tsam muaj qee qhov kev siv tseem ceeb rau TRD txoj kev tsim kho hauv high-speed rail tunnel engineering thiab kev tsim kho nyob rau sab qaum teb.
Post lub sij hawm: Oct-12-2023