Geomembrane yog cov khoom siv tsis muaj dej thiab thaiv cov khoom siv raws li cov ntaub ntawv polymer siab. Nws feem ntau muab faib ua low-density polyethylene (LDPE) geomembrane, high-density polyethylene (HDPE) geomembrane, thiab EVA geomembrane. Warp knitted composite geomembrane txawv ntawm cov geomembranes dav dav. Nws tus yam ntxwv yog qhov kev sib tshuam ntawm longitude thiab latitude tsis yog nkhaus, thiab txhua tus nyob rau hauv ib tug ncaj lub xeev. Tuav ob txoj hlua ruaj khov nrog cov xov braided, uas tuaj yeem sib npaug sib npaug, tiv thaiv sab nraud, faib kev ntxhov siab, thiab thaum siv lub zog sab nraud los kua muag cov khoom siv, cov xov paj yuav sib sau ua ke ntawm qhov pib tawg, ua rau lub kua muag tawm tsam. Thaum siv warp knitted composite, warp knitted xov yog rov qab threaded ntawm fiber txheej ntawm warp, weft, thiab geotextile rau weave peb rau hauv ib qho. Yog li ntawd, warp knitted composite geomembrane muaj cov yam ntxwv ntawm lub zog tensile siab thiab qis elongation, nrog rau cov dej tsis zoo ntawm cov geomembrane. Yog li ntawd, warp knitted composite geomembrane yog ib hom khoom siv los tiv thaiv cov dej ntws uas muaj cov haujlwm ntawm kev txhawb zog, kev sib cais, thiab kev tiv thaiv. Nws yog kev siv qib siab ntawm geosynthetic composite cov ntaub ntawv thoob ntiaj teb niaj hnub no.
Lub zog tensile siab, tsis tshua muaj elongation, niaj hnub longitudinal thiab transverse deformation, siab tsim kua muag kuj, zoo heev hnav tsis kam, thiab muaj zog dej tsis kam .. woven ntaub. Nws cov kev ua tau zoo los tiv thaiv kev ua haujlwm feem ntau yog nyob ntawm qhov kev ua tau zoo ntawm cov yeeb yaj kiab yas. Cov yeeb yaj kiab yas siv rau kev siv tshuaj tiv thaiv hauv tsev thiab txawv teb chaws feem ntau suav nrog (PVC) polyethylene (PE) thiab ethylene / vinyl acetate copolymer (EVA). Lawv yog cov khoom siv hluav taws xob hloov pauv tau yooj yim nrog cov khoom siv tshwj xeeb me me, muaj zog extensibility, siab adaptability rau deformation, corrosion kuj, tsis kub tsis kam, thiab zoo Frost. Kev pabcuam lub neej ntawm cov yeeb yaj kiab geotextile feem ntau yog txiav txim siab los ntawm seb cov yas zaj duab xis puas tau poob nws cov dej los tiv thaiv thiab thaiv dej. Raws li lub teb chaws tus qauv ntawm lub Soviet Union, polyethylene zaj duab xis nrog ib tug tuab ntawm 0.2m thiab ib tug stabilizer siv nyob rau hauv hydraulic engineering yuav ua hauj lwm rau 40-50 xyoo nyob rau hauv cov dej ntshiab thiab 30-40 xyoo nyob rau hauv cov dej phwj tuaj. Yog li ntawd, kev pab cuam lub neej ntawm cov khoom sib xyaw geomembrane yog txaus kom ua tau raws li qhov xav tau los tiv thaiv cov dej ntws ntawm lub pas dej.
Post lub sij hawm: Jun-11-2024