Thaum thawj hnub ntawm kev tsim kho, cov neeg ua haujlwm pib los ntawm kev npaj cov qhov av thiab cov qhov dej kom zoo. Lawv tshem tawm cov nroj tsuag, cov av xoob, thiab cov pob zeb ntse, kom ntseeg tau tias qhov tsis sib xws ntawm qhov chaw raug khaws cia hauv qhov kam rau siab ntawm ± 50mm kom lav tau tias cov khoom siv tiaj tus thiab me me. Rau cov qhov av nyuaj, cov kws tshaj lij kho qhov gradient ua ntej kom tiv thaiv qhov ntxhab dhau los ntawm kev cuam tshuam rau qhov zoo ntawm kev tso; nyob rau hauv qee qhov chaw, ib daim geotextile underlayment kuj tau teeb tsa ua ntej los tiv thaiv daim pam cement los ntawm kev puas tsuaj los ntawm cov khoom ntse, yog li tsim kom muaj lub hauv paus ruaj khov rau kev ua haujlwm tom ntej.
Thaum cov ntaub pua plag cement dov tau xa mus rau qhov chaw lawm, cov neeg ua haujlwm yuav txiav lawv kom raug raws li qhov loj me uas tau teev tseg, kom muaj qhov sib tshooj ntawm 10-15 cm. Thaum lub sijhawm teeb tsa, cov ntaub pua plag yuav raug nthuav tawm ntawm sab saud mus rau hauv qab ntawm cov toj roob hauv pes thiab mus rau qhov dej ntws hauv cov kwj dej. Qhov no ua kom qhov chaw ntawm daim ntaub pua plag tseem nruj - tsis muaj qhov ntxhib lossis cov ntu dai - thiab haum rau cov av tsis sib xws.
Ntawm cov pob qij txha uas sib tshooj, txoj cai nruj ntawm "txheej sab saud sib tshooj txheej sab qis, ua raws li cov dej ntws" raug siv nruj heev, nrog rau cov sib tshooj sab nraud ntsuas ≥15 cm thiab cov sib tshooj ntev ≥10 cm. Tom qab ntawd, Φ8mm galvanized anchor pins uas muaj cov washers siv los ruaj ntseg daim pam hauv cov qauv grid nrog qhov sib nrug ntawm 1.0–1.5 m. Ntawm qhov siab tshaj plaws, ntiv taw, thiab ces kaum ntawm qhov nqes hav, qhov sib nrug raug txo kom txog 0.5 m los muab kev sib txuas ruaj khov dua, xauv daim pam cement kom ruaj khov thiab tiv thaiv kev plam lossis bulging tom qab hydration.
Cov kws kho vaj tse hais tias peb lub ntsiab lus tseem ceeb yuav tsum tau ua raws li thaum lub sijhawm teeb tsa daim pam cement: (1) Thaum qhov kub poob qis dua 5°C lossis nce siab tshaj 30°C, yuav tsum siv cov txheej txheem rwb thaiv tsev lossis txias kom tsis txhob cuam tshuam rau cov dej noo; (2) Txwv tsis pub txau ncaj qha rau ntawm daim pam nrog cov phom dej siab kom tiv thaiv kev poob ntawm cov cement slurry; thiab (3) Yuav tsum tau ua tib zoo saib xyuas kev ywg dej rau cov kab sib tshooj thiab cov ntsiab lus anchor kom ntseeg tau tias nws kho tau zoo thiab sib npaug thoob plaws tag nrho qhov chaw. Tsuas yog los ntawm kev ua tib zoo saib xyuas cov ntsiab lus no thiaj li ua tau raws li nws lub peev xwm tag nrho, ua rau muaj cov haujlwm engineering ruaj khov thiab zoo.
Hloov ntawm daim ntaub mos mos mus ua lub plhaub tiv thaiv khov kho, daim pam cement—nrog nws cov txheej txheem teeb tsa tsawg kawg nkaus thiab muaj peev xwm ua tau zoo heev—ua rau txoj hauv kev tshiab los txhim kho qhov zoo thiab kev ua haujlwm ntawm cov haujlwm tsim kho vaj tse. Thaum cov thev naus laus zis txuas ntxiv mus, "cov khoom siv high-tech yooj ywm" no tau npaj rau kev siv dav dav thoob plaws ntau yam kev siv, yog li pab txhawb rau kev txhim kho zoo ntawm cov khoom siv ntsuab thiab ua haujlwm tau zoo.
Lub sijhawm tshaj tawm: Plaub Hlis-09-2026
