1. Cov neeg ua hauj lwm yuav tsum tau sib sau ua ke plaub-legged qhob pwm. Bolts ruaj khov dua li cov uas siv rau lwm qhov chaw, thiab lawv tau yooj yim muaj. Nws yog ib qho tsim nyog yuav tsum tau siv lub tshuab hluav taws xob txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pwm, nws yog ib qho tsim nyog yuav tsum tau siv cov ciaj ntswj kom nruj cov bolts ntawm cov pwm raws li lawv hom.
2. Tom qab cov plaub-legged qhob pwm tau sib sau ua ke, qee cov khoom siv, xws li cov tshuaj sib tov sib xyaw, thiab lwm yam cuab yeej, yuav tsum tau muab tso tseg rau cov neeg ua haujlwm siv.
3. Yuav kom ceev cov txheej txheem, koj yuav tsum tau siv roj tam sim ntawd tom qab cov pwm sib dhos. Cov chaw tsim khoom pom zoo siv cov roj cav ua haujlwm. Tom qab txheej pwm, nws yuav du heev. Lub cav roj txheej kuj ntxiv kev tiv thaiv rau sab hauv txheej ntawm cov hlau pwm thiab txo cov corrosion tom qab nchuav dej - muaj mortar.
4. Plaub -legged hollow yoj- tawg thaiv pwm tuaj yeem ntim nrog tshuaj khib. Ib qho loj ntawm cov khoom sib xyaw ntxiv rau hauv cov pob zeb, yog li qhov hardness ntawm precast yoj- tawg blocks siab dua li cov cement- nrum blocks. Tau kawg, pob zeb feem ntau yog siv rau kev nchuav los ua kom tiav cov nthwv dej -breaking blocks kom tau raws li kev tsim kho.
5. Tom qab grouting tiav lawm, cov neeg ua haujlwm yuav tsum qhia lub vibrator kom tshem tawm cov cua ntawm cov pob zeb. Tsuas yog tom qab cov huab cua raug tshem tawm tuaj yeem ua rau qhov nyuaj thiab qhov ntom ntawm qhov tshwm sim plaub -legged hollow yoj-breaking block ua tau raws li cov qauv tsim nyog.