Kev kho qhov sib koom ua ke ntawm lub qhov dej tsis sib haum yog cov txheej txheem tseem ceeb ntawm kev tsim kho. Feem ntau, cov txheej txheem vuam kub yog siv. Qhov saum npoo ntawm PE zaj duab xis yog rhuab kom yaj ntawm qhov chaw, thiab tom qab ntawd fused rau hauv ib lub cev los ntawm lub siab. Rau cov ntug pob qij txha ntawm cov nteg tunnel waterproof board Nws yog ib qho tsim nyog yuav tsum tsis txhob muaj roj, dej, plua plav, thiab lwm yam ntawm qhov sib koom ua ke. Ua ntej vuam, PE ib zaj duab xis ntawm ob sab ntawm kev sib koom ua ke yuav tsum tau hloov kho kom nws sib tshooj ib qho dav. Siv lub tshuab vuam tshwj xeeb los vuam lub qhov dej tsis sib haum, thiab cov pob zeb tsis muaj dej tsis zoo yog tsim los ntawm kev ntxiv cov tshuaj tiv thaiv dej hauv cov pob zeb, uas tuaj yeem txhim kho cov dej tsis zoo thiab tsis zoo. Cov txheej txheem dej tsis zoo feem ntau siv cov txheej txheem sab nraud txuas nrog cov dej tsis zoo. Rau kev sib xyaw hauv ob sab phlu, teem lub interlayer waterproof txheej. Cov ntaub ntawv tsis muaj dej yog feem ntau siv cov yeeb yaj kiab tsis muaj dej thiab cov laug cam ua los ntawm cov khoom siv hluavtaws thiab geotextile polymers.
Post lub sij hawm: May-10-2022