Akụkọ

Geomembrane bụ ihe mgbochi mmiri na ihe mgbochi dabere na ihe ndị dị elu polymer. A na-ekewa ya na polyethylene dị ala (LDPE) geomembrane, polyethylene dị elu (HDPE) geomembrane, na EVA geomembrane. Geomembrane mejupụtara warp dị iche na geomembrane izugbe. Ihe e ji mara ya bụ na njikọ nke lonjituudu na latitude adịghị agbagọ, na nke ọ bụla nọ n'ọnọdụ kwụ ọtọ. Kee ihe abụọ ahụ nke ọma na eri a kpara akpa, nke enwere ike ịmekọrịta n'ụzọ ziri ezi, na-eguzogide ndị agha mpụga, kesaa nrụgide, na mgbe ike mpụga etinyere na-adọwa ihe ahụ, yarn ga-agbakọta n'akụkụ mgbape mbụ ahụ, na-abawanye nkwụsi ike nke anya mmiri. Mgbe a na-eji ihe ndị mejupụtara warp kpara akpa, a na-adụnye eri ahụ a kpara akpa ugboro ugboro n'etiti eriri warp, weft, na geotextile iji kpaa atọ ahụ ka ọ bụrụ otu. Ya mere, geomembrane nke a kpara akpa ahụ nwere njirimara nke ike ike dị elu na elongation dị ala, yana ọrụ mgbochi mmiri nke geomembrane. Ya mere, geomembrane mejupụtara warp kpara akpa bụ ụdị ihe na-egbochi ịhụ ihe nke nwere ọrụ nkwado, ikewapụ na nchekwa. Ọ bụ ngwa dị elu nke ihe mejupụtara geosynthetic na mba ụwa taa.

Ike tensile dị elu, elongation dị ala, ịdị ogologo ogologo na nrụrụ transverse, nguzogide akwa akwa, nkwụsi ike dị oke mma, na nguzogide mmiri siri ike. ákwà kpara akpa. Ọrụ mgbochi-seepage ya dabere na arụmọrụ mgbochi seepage nke ihe nkiri plastik. Ihe nkiri rọba a na-eji maka ngwa mgbochi seepage n'ụlọ na mba ofesi gụnyere (PVC) polyethylene (PE) na ethylene/vinyl acetate copolymer (EVA). Ha bụ ihe ndị na-agbanwe agbanwe nke polymer nwere obere ike ndọda, ike extensibility, nnukwu mgbanwe maka nrụrụ, nguzogide corrosion, obere okpomọkụ na-eguzogide, na ezigbo ntu oyi. A na-ekpebi ndụ ọrụ nke ihe nkiri geotextile mejupụtara ma ọ bụrụ na ihe nkiri plastik efuola ihe mgbochi seepage na mgbochi mmiri. Dị ka ụkpụrụ mba nke Soviet Union si dị, ihe nkiri polyethylene nke nwere ọkpụrụkpụ nke 0.2m na stabilizer ejiri na hydraulic engineering nwere ike ịrụ ọrụ maka afọ 40-50 n'okpuru ọnọdụ mmiri doro anya na afọ 30-40 n'okpuru ọnọdụ nsị. Ya mere, ndụ ọrụ nke geomembrane composite zuru ezu iji gboo ihe mgbochi-seepage chọrọ nke dam.