Nkhani

Geomembrane ndi chinthu chopanda madzi komanso chotchinga chotengera ma polima olemera kwambiri. Amagawidwa makamaka mu polyethylene yotsika kwambiri (LDPE) geomembranes, high-density polyethylene (HDPE) geomembranes, ndi EVA geomembranes. Ma geomembrane opangidwa ndi opangidwa ndi osiyana ndi geomembrane wamba. Maonekedwe ake ndikuti mizere yopingasa ya longitude ndi latitude simapindika, ndipo iliyonse ili mowongoka. Kugwiritsa ntchito ulusi wolukidwa kuti amangirire molimba awiriwa amatha kukwaniritsa kulumikizana kofananira, kupirira mphamvu zakunja, kugawa kupsinjika, ndipo mphamvu yakunja yogwiritsidwa ntchito ikang'amba zakuthupi, ulusiwo udzasonkhanitsidwa pamng'alu woyamba, ndikuwonjezera kukana misozi. Panthawi yoluka, ulusi woluka umadutsa kaŵirikaŵiri pakati pa mizere yopingasa, yoluka, ndi ya ulusi wa geomembrane kuti uluke zitatuzo kukhala chimodzi. Chifukwa chake, ma geomembranes opangidwa ndi warp oluka samangokhala ndi mawonekedwe amphamvu kwambiri komanso kutalika kocheperako, komanso amakhala ndi machitidwe osalowa madzi a geomembranes. Chifukwa chake, geomembrane yopangidwa ndi warp ndi chinthu chotsutsana ndi seepage chomwe chili ndi ntchito zolimbitsa, kudzipatula, ndi chitetezo. Ndikugwiritsa ntchito zida zapamwamba kwambiri zamagulu a geosynthetic padziko lonse lapansi masiku ano.

Kulimba kwamphamvu kwambiri, kutalika kochepa, kupindika kofananako komanso kupindika mozungulira, kukana misozi, kukana kuvala bwino, komanso kukana madzi mwamphamvu. nsalu. Kuchita kwake kotsutsa-seepage makamaka kumadalira machitidwe otsutsa a filimu yapulasitiki. Makanema apulasitiki omwe amagwiritsidwa ntchito ngati anti-seepage application m'nyumba ndi kunja makamaka akuphatikizapo (PVC) polyethylene (PE) ndi ethylene/vinyl acetate copolymer (EVA). Ndiwo mtundu wa zinthu zosinthika za polima zokhala ndi mphamvu yokoka yaying'ono, kufalikira kwamphamvu, kusinthasintha kwakukulu kwa mapindikidwe, kukana kwa dzimbiri, kukana kutentha pang'ono, komanso kukana chisanu. Moyo wautumiki wa ma geomembranes ophatikizana umatsimikiziridwa makamaka ngati filimu ya pulasitiki imataya katundu wake wotsutsana ndi seepage ndi madzi. Malinga ndi mfundo za dziko la Soviet, mafilimu a polyethylene okhala ndi makulidwe a 0.2m ndi okhazikika omwe amagwiritsidwa ntchito muumisiri wamadzi amatha kugwira ntchito kwa zaka 40-50 pansi pamadzi omveka bwino komanso zaka 30-40 pansi pa zimbudzi. Choncho, moyo wautumiki wa gulu la geomembrane ndi wokwanira kukwaniritsa zofunikira zotsutsana ndi madzi a damu.