Kev soj ntsuam ntawm Drilling qhov rau Precast Piles thiab Drill Pipes rau Cast-In-Pile Piles -2

Kev tsim kho vaj tse

Prestressed yeeb nkab pawg yog tsim rau cov av mos, xuab zeb, av yas, silty av, nplua xuab zeb, thiab xoob gravel av tsis muaj pob zeb los yog ntab. Nws tsis yooj yim nkag mus rau cov xuab zeb tuab thiab lwm qhov nyuaj interlayers tab sis tuaj yeem nkag mus rau hauv qhov tob ntawm cov xuab zeb, gravel, tawv av nplaum, cov pob zeb uas muaj zog heev, thiab lwm cov khoom txhawb nqa. Thaum piling cov xuab zeb thiab pob zeb yog ib qho nyuaj, kev tsav qhov yuav siv tau. Thaum tsav tsheb los yog statically nias ib lub yeeb nkab prestressed thiab siv lub pob zeb uas muaj zog heev raws li cov txheej txheem ntawm pawg pawg, lub cev pawg yuav dhau los ntawm feem ntau ntawm cov av tsis muaj zog, cohesive av, thiab weathered pob zeb txheej. Yog li ntawd yuav tsis muaj kev tiv thaiv loj rau lub cev pawg. Piv txwv li, kev leaching hauv zos thiab kev faib cov pob zeb cais nyob rau hauv tag nrho cov pob zeb clastic yuav ua rau qee qhov teeb meem hauv pawg. Raws li kev tsim kho yuav tsum muaj cov tshuab loj xws li vibrating pawg rauj thiab cov khoom nqa nqa, qhov chaw tsim kho yuav tsum loj.

Drilling yeeb nkab cam khwb cia-nyob rau hauv-qhov chaw piles yog haum rau cov av xuab zeb, cohesive av, raws li zoo raws li gravel thiab cobblestone av, thiab pob zeb formations. Txawm li cas los xij, nws yog qhov nyuaj rau kev tsim cov av thiab cov hauv paus uas tej zaum yuav muaj cov xuab zeb ntws los yog dej siab. Yog li ntawd, piv nrog prestressed yeeb nkab pawg, dhuav pawg muaj cov yam ntxwv ntawm cov khoom siv yooj yim, kev ua haujlwm yooj yim, thiab kev ywj pheej ntawm qhov chaw txwv. Tab sis lub sij hawm tsim kho yog ntev dua li cov yeeb nkab prestressed, thiab kev tsim kho zoo tsis ruaj khov.

Kev tsim kho tshuab

Kev tsim kho tshuab ntawm cov yeeb nkab prestressed yog: kev ntsuas thiab qhov chaw → tso thiab nruab nrab ntawm pawg tshuab → pawg nias → pawg ntxiv → pawg xa khoom lossis txiav → pawg siab zoo li qub kom ncav cuag qhov tsim tsa.

(1) Kev ntsuas thiab qhov chaw: Muab cov ncej thiab txhua pawg ua ntej kev tsim kho, thiab pleev xim kom pom tseeb.

(2) Kev tso kawm thiab kev ua kom zoo ntawm pawg tsav tsheb: cov neeg tsav tsheb pawg yog siv los pib lub theodolite.

Yog tias koj txaus siab rau tungsten carbide rods thiab xav tau cov ntaub ntawv thiab cov ntsiab lus ntxiv, koj tuaj yeem tiv tauj peb hauv xov tooj lossis xa ntawv ntawm sab laug, lossis xa ntawv xa mus rau peb hauv qab ntawm nplooj ntawv.