Kev siv cov txheej txheem thiab cov txheej txheem ntawm qhob ceev-teeb tus neeg sawv cev pob zeb accelerator hmoov siv nyob rau hauv tshuaj tsuag qhov
Apr 23, 2023
Cov pob zeb ceev ceev cov neeg sawv cev hmoov yog cov tshuaj ntxiv siv los ua kom cov pob zeb tawv tawv, uas tuaj yeem ua kom cov pob zeb ncav cuag qhov xav tau lub zog thiab hardness nyob rau lub sijhawm luv luv. Hauv kev tsim kho qhov av, shotcrete yog ib txoj hauv kev siv los tsim cov tunnels sai thiab ua tau zoo. Kev siv cov pob zeb ceev-teeb tus neeg sawv cev hmoov tuaj yeem txhim kho qhov zoo ntawm cov pob zeb txau thiab ua kom lub sijhawm tawv tawv, yog li ua kom lub sijhawm siv lub sijhawm luv thiab txhim kho kev tsim kho. Cov hauv qab no yog cov txheej txheem siv thiab cov txheej txheem ntawm cov pob zeb ceev-teeb tus neeg sawv cev hmoov hauv cov tshuaj tsuag qhov:
1. Ntsuas cov khoom ua vaj tse: Ntsuas qhov kev faib ua feem thiab qhov zoo ntawm cov khoom ua vaj tse raws li qhov sib xyaw ua ke thiab cov pob zeb ua kom zoo.
2. Ntxiv pob zeb ceev-setting tus neeg sawv cev hmoov: Ntxiv cov pob zeb ceev-teeb tus neeg sawv cev hmoov sib npaug rau hauv cov pob zeb sib tov, thiab tswj cov kev faib ua cov hmoov ntxiv raws li qhov sib xyaw ua ke thiab cov kev xav tau.
3. Kev sib xyaw ua ke: Tig lub pob zeb sib tov thiab sib tov cov pob zeb sib npaug.
4. Npaj cov khoom siv blasting: Npaj cov khoom siv blasting thiab xa cov pob zeb rau cov khoom siv blasting.
5. Shotcrete: siv cov cuab yeej siv tshuaj tsuag los txau cov pob zeb rau ntawm phab ntsa tunnel kom tswj cov thickness thiab uniformity ntawm cov pob zeb.
6. Pob zeb hardening: Tos kom cov pob zeb ua kom tawv. Lub sij hawm hardening yuav txawv raws li qhov sib xyaw ua ke sib piv, tus nqi ntawm cov pob zeb ceev ceev cov neeg siv cov hmoov siv, thiab qhov kub thiab txias.
Nws yuav tsum tau muab sau tseg hais tias tus nqi ntawm cov pob zeb accelerator hmoov siv yuav tsum tau kho raws li cov pob zeb sib tov piv thiab ib puag ncig tej yam kev mob ntawm cov pob zeb kom ua tiav qhov zoo tshaj plaws accelerated hardening nyhuv. Nyob rau tib lub sijhawm, thaum txau cov pob zeb, nws tseem yuav tsum tau tswj xyuas qhov nrawm nrawm thiab tuab kom tsis txhob muaj teeb meem zoo xws li tawg ntawm cov pob zeb.
