Taw qhia: Ob peb feeb ntawm kev kuaj xyuas ua ntej nchuav tuaj yeem tiv thaiv ntau yam me me. Loose bolts, qias neeg cov ces kaum thiab tsis sib npaug ntawm tus neeg sawv cev tso tawm feem ntau pom meej meej ntawm qhov ua tiav tiav. Nqe lus piav qhia: Precast railway pwm yuav tsum tau kuaj xyuas ua ntej txhua lub ncuav vim cov teeb meem pob zeb yooj yim los tiv thaiv dua li kev kho. Cov cement qub ntawm lub ntsej muag sab hauv tuaj yeem tawm cov cim. Ib qho xoob xoob tuaj yeem xau slurry.
Ib qho kev hloov pauv tuaj yeem tso lub qhov rau hauv txoj haujlwm tsis raug, thiab qhov yuam kev yuav tsis raug pom kom txog thaum demolding. Rau cov ntu phab ntsa, cable trench qhov chaw thiab npog daim hlau, Precast railway pwm kuj xav tau ceev ceev ntawm chamfers, sealing strips, rebar txoj hauj lwm thiab nqa cov ntsiab lus. Cov kev kuaj xyuas no yooj yim, tab sis lawv khaws cov pwm npaj rau kev rov ua haujlwm dua.
Cov ntsiab lus tseem ceeb: Cov kev kuaj xyuas muaj txiaj ntsig zoo tshaj plaws yog lub ntsej muag huv si, lub ntsej muag nruj, txawm tias tso tawm tus neeg sawv cev, cov ntawv ntxig kom raug, kev txhawb nqa ruaj khov thiab qhov chaw demolding meej. Lub kaum sab xis thiab lub hnab bolt tsim nyog tau txais kev saib xyuas ntxiv vim tias cov cement tsim muaj sai sai.