Tsis ntev los no, Tyhen Foundation lub taub hau qis KR300ES rotary drilling rig tau koom nrog kev tsim kho ntawm Guangzhou-Baiyun District Jingguang High-Speed Rail Line 5 qhov project.
Raws li cov neeg caij tsheb thauj mus los rau Guangzhou lub nroog rail system, Baiyun Chaw nres tsheb yog thawj qhov chaw loj tsim ua raws li niaj hnub kev npaj thauj mus los hauv nroog hauv Guangzhou. Qhov project feem ntau yog kev tsim kho tshiab ntawm Guangzhou Baiyun Chaw Nres Tsheb, nrog rau kev txhim kho cov chaw muaj feem cuam tshuam xws li Dalang Bus Maintenance Depot thiab txuas cov kab tsheb ciav hlau. Qhov project yog teem kom tiav nyob rau hauv 2023.
KR300ES Tsawg headroom rotary drilling rig nyob rau hauv qhov chaw tsim kho ntawm Guangzhou high-speed railway project pawg txoj kab uas hla ntawm 1000mm, pawg qhov tob ntawm 28 ~ 33 meters, geological tej yam kev mob yog complex: mas filling (feem ntau yog backfill tsim, siv pov tseg particle loj), silty av nplaum , silt (3-6 meters, ib qho yooj yim rau lub qhov ntxaum), gravel, muaj zog weathered siltstone, weathered siltstone. Sab saum toj backfill av nrog xuab zeb thoob qhov thiab tom qab ntawd txog 5 meters hauv qab lub raj. Tom qab tsoo cov xuab zeb txheej, cov av nkos tuab yog kho kom tsis txhob muaj dej seepage. Nkag mus rau hauv lub pob zeb inclined, xyaum tob thiab tom qab ntawd ntses nws tawm nrog lub thoob xuab zeb. Nyob rau hauv cov ntaub ntawv ntawm slurry to nyob rau hauv ib tug me me karst qhov tsua, uas yog backfill cement, thiab txuas ntxiv mus laum tom qab cov cement solidifies. KR300ES Tsawg taub hau teb drilling rig (qhov siab ntawm 10.9 meters) kev tsim kho qhov siab ntawm 11 meters, nruab nrog 300 kN. Lub zog loj torque lub taub hau ntawm m faib cov av nkos uas tsim nyog los tiv thaiv phab ntsa los daws qhov kev tsim kho ntawm cov xuab zeb nrawm thiab lub zog muaj zog los txhim kho kev tsim kho ntawm pob zeb nkag. Nws zoo kawg nkaus daws cov teeb meem uas tau ntsib hauv qhov chaw me me, cov kab loj loj, qhov tob tob thiab cov pob zeb nyuaj. Kev tsim kho sai thiab ua haujlwm siab cov neeg siv khoom tau nyiaj, yeej qhov chaw tsim kho cov neeg ua haujlwm qhuas.
KR300ES qis taub hau teb drilling rig yog siv nyob rau hauv qhov chaw tsim kho ntawm Guangzhou high-ceev tsheb ciav hlau qhov project, qhov twg pawg kab yog 1000 hli, thiab pawg qhov tob ntawm 28 mus rau 33 meters. Lub geological tej yam kev mob yog complex thiab muaj xws li ntau yam xws li lwm yam sau av (feem ntau backfilled txheej nrog loj siv cov khoom pov tseg), silty av nplaum, silty xuab zeb (xws li ntawm 3 mus rau 6 meters, nws yuav vau), round gravel txheej, heev weathered silty. sandstone, thiab nruab nrab weathered silty sandstone. Rau cov av sab saud, ib lub thoob xuab zeb-scooping yog siv los tsim ib lub casing nyob ib ncig ntawm 5 meters hauv qab ntawm qhov chaw.
Tom qab ncav cuag cov xuab zeb txheej, cov av nkos tuab yog siv los tiv thaiv dej infiltration. Thaum ntsib cov khaubncaws sab nraud povtseg ntawm cov pob zeb, cov tub ntxhais lub thoob yog siv los nkag mus, ua raws li kev siv cov xuab zeb-scooping thoob kom tshem tawm cov khoom. Nyob rau hauv cov ntaub ntawv ntawm cov kab noj hniav me me los yog seepage, cement yog txhaj, thiab drilling txuas ntxiv tom qab cov cement tau solidified.
KR300ES qis taub hau teb drilling rig, nrog qhov siab ntawm 10.9 meters, ua haujlwm ntawm kev tsim kho qhov siab ntawm 11 meters thiab tau nruab nrog lub zog 300kN.m torque lub taub hau. Nws yog siv nrog cov av nkos slurry uas tsim nyog rau kev tiv thaiv phab ntsa, hais txog cov teeb meem ntawm kev ua haujlwm hauv cov xuab zeb ntws thiab nce kev tsim kho kom zoo thaum nkag mus rau hauv pob zeb txheej. Lub rig no zoo kawg nkaus daws cov teeb meem uas tau ntsib hauv kev tsim kho, suav nrog qhov chaw txwv, cov kab loj loj, qhov tob tob, thiab kev sib tw pob zeb. Nws qhov kev tsim kho siab ceev thiab kev ua haujlwm tau txais kev qhuas zoo los ntawm cov neeg ua haujlwm tsim kho, thaum kawg tau txais txiaj ntsig zoo rau cov neeg siv khoom.
Post lub sij hawm: Oct-25-2023