Nkhani

Geomembrane imapangidwa ndi filimu ya pulasitiki monga gawo lapansi lotsutsana ndi tsamba komanso nsalu zopanda nsalu. Kuchita kwa anti-seepage kwa geomembrane makamaka kumadalira filimu ya pulasitiki yotsutsa-seepage. Makanema apulasitiki omwe amagwiritsidwa ntchito ngati anti-seepage kunyumba komanso kumayiko ena makamaka amaphatikiza polyvinyl chloride, polyethylene, ndi ethylene/vinyl acetate copolymers. Ndi zinthu zosinthika za polima zokhala ndi gawo laling'ono, ductility wamphamvu, kusinthika kwamphamvu, kukana kwa dzimbiri, kukana kutentha pang'ono, komanso kukana kwachisanu. Kachiwiri, ntchito zazikulu ndi kugwiritsa ntchito filimu yapulasitiki zidayambitsidwa.
Ntchito zazikulu
Mmodzi. Zimagwirizanitsa ntchito zotsutsa-seepage ndi ngalande, ndipo zimakhala ndi ntchito zodzipatula komanso zolimbikitsa.
2. Mphamvu zophatikizika kwambiri, kulimba kwa peel, komanso kukana kuphulika kwakukulu.
Atatu. Kuchulukirachulukira kwamphamvu, kugundana kwakukulu, komanso kukulitsa kwa mzere wocheperako.
4. Kukana kukalamba kwabwino, kutentha kwakukulu, ndi khalidwe lokhazikika.

Composite geomembrane ndi geotextile anti-seepage material yopangidwa ndi filimu ya pulasitiki monga gawo lapansi lotsutsana ndi tsamba komanso nsalu zosalukidwa. Kuchita kwake kotsutsa-seepage makamaka kumadalira machitidwe otsutsa a filimu yapulasitiki. Makanema apulasitiki omwe amagwiritsidwa ntchito ngati anti-seepage applications m'nyumba ndi kunja makamaka akuphatikizapo polyvinyl chloride (PVC), polyethylene (PE), ndi ethylene/vinyl acetate copolymer (EVA). Ndi mtundu wa zinthu zosinthika za polima zokhala ndi mphamvu yokoka yotsika, kukulitsa kwamphamvu, kusinthasintha kwapamwamba, 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.
Kuchuluka kwa geomembrane
Damu losungiramo madzilo poyamba linali dambo lapakati pa khoma, koma chifukwa cha kugwa kwa damulo, kumtunda kwa khoma lapakati kunatsekedwa. Kuti athetse vuto la kumtunda kwa anti-seepage, khoma la anti-seepage linawonjezedwa poyamba. Malinga ndi kuwunika kwa chitetezo ndi kuwunika kwa damu la Zhoutou Reservoir, kuti athetse kutayikira kofooka kwamadzi komanso kutayikira kwamadzi komwe kumachitika chifukwa cha kusefukira kwamadzi kangapo, njira zodziwikiratu zotsutsana ndi zowona, monga kugwetsa kwa bedrock curtain grouting, kukhudzana pamwamba pa grouting, kusefukira ndi madzi. chotchinga chotchinga bwino chakumbuyo, ndipo khoma la anti-seepage mbale khoma linatengera. Khoma lopendekera kumtunda limakutidwa ndi geomembrane yophatikizika ya anti-seepage, ndipo imalumikizidwa ndi khoma loyimirira la anti-seepage pansi, kufika pamtunda wa 358.0m (0.97m pamwamba pa kusefukira kwa cheki)
ntchito yaikulu
1. Kuphatikiza ntchito zotsutsa-seepage ndi ngalande, komanso kukhala ndi ntchito monga kudzipatula ndi kulimbikitsa.
2. Mphamvu zophatikizika kwambiri, kulimba kwa peel, komanso kukana kuphulika kwakukulu.
3. Kuchulukirachulukira kwamadzi, kugundana kwakukulu, ndi kukulitsa kwa mzere wocheperako.
4. Kukana kukalamba kwabwino, kusinthasintha kwakukulu kwa kutentha kwa chilengedwe, ndi khalidwe lokhazikika.