Ntsug reinforced drainage dej qhob yeeb nkab ua tshuab:
Ntsuas reinforced drainage dej ua vaj huam yeeb ua tshuab ua tau txhua hom kev sib txuas ntawm cov nplais thiab cov nplhaib, dawb saum, tswb thiab taub, cov yeeb nkab zoo nrog qhov ntev ntawm 1000mm, puab diameter ntawm 150-1000 hli nrog cov khoom siv rawestone, slag , xuab zeb thiab cement. Tag nrho cov raj thiab yeeb nkab yog zoo li ib zaug, thiab tso tawm sai sai. Kuj ua rau lub siab yuav ncav cuag 0.5mpa, thiab qhov ua tau yog 10-20 thaus / teev. Lawv yog cov siv dav hauv cov kua fais fab, siv cov dej zoo, kev ua haujlwm loj thiab lwm yam. Nws muaj cov cim tshwj xeeb xws li tsawg dua peev nyiaj, rov qab ua lag luam, nyiaj siab, siv nws kim heev.
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