Geomembrane, ua cov khoom tseem ceeb geosynthetic, yog siv dav hauv anti {{0} saib cov phiaj xwm dej xws li cov khoom siv txuag dej, cov av hauv av. Nws cov qauv kev tsim qauv feem ntau yog feem ntau raws li cov khoom siv lub cev thiab cov kws kho tshuab, nrog rau qhov yuav tsum tau ua ntawm cov phiaj xwm phiaj xwm. Los ntawm kev suav txog kev tshawb fawb thiab kev xaiv meej pem, qhov project kev nyab xeeb thiab kav ntev yog kom ntseeg tau.
Geomembrance tsim feem ntau txiav txim siab nws anti {- saib kev ua tau zoo. Cov tub ntxhais lub ntsiab lus yog lub permeability coefficient, uas yog feem ntau yuav tsum tau nyob rau hauv thaj tsam ntawm 10⁻¹² rau 10⁻¹⁷ cm / s kom tau raws li kev nruj kev tiv thaiv anti- saib cov cai. High - ntom polyethylene (HDPE) thiab linear qis (LLDPE) yog cov ntaub ntawv muaj txiaj ntsig zoo nkauj vim lawv cov tshuaj zoo heev thiab kev laus tsis kam. Lub ntev - sij hawm} sij hawm} lub sij hawm tsis kam ntawm cov khoom yuav tsum tau ntsuas raws li cov khoom siv hluav taws xob ntawm lub qhov hluav taws xob nruab nrab (xws li cov dej phwj tuaj thiab av av).
Cov qauv siv tshuab yog lwm qhov tseem ceeb. Geomembranes yuav tsum wrictict nro, shear, thiab sab nraud thauj khoom thaum lub sij hawm tsim kho, yog li lawv lub zog, elongation, thiab lub zog Weld yuav tsum ua kom tau raws li kev cai tswj cov kev tswj hwm. Piv txwv li, HDPE geomembranes feem ntau muaj cov txiaj ntsig lub zog ntawm ntau dua lossis sib npaug ntawm ntau dua lossis sib npaug ntawm 700%, ua kom muaj kev cuam tshuam ntau dua thaum lub hauv paus deforms. Tsis tas li ntawd, ua ke rau daim nyias nyias nyias muaj xws li Geotextiles thiab Geogrids tuaj yeem txhim kho kev ruaj ntseg tag nrho, tsim kom zoo dua kev sib cav sib ceg.
Kev hloov kho ib puag ncig yog ib qho tseem ceeb. Geomembranes yuav tsum tau tawm tsam UV Rays, Kub hloov pauv, thiab bioerosion, yog li carbon dub antioxidant feem ntau ntxiv. Thickness yog tswj (feem ntau 0.5 rau 2.0 hli) kom sib npaug yooj yim thiab ruaj khov. Hauv cov av nyuaj, cov tshuaj ntsuam xyuas zoo yog siv los simulate kev ntxhov siab kev faib tawm kom tsis txhob muaj kev ntxhov siab cov kev ntxhov siab uas tuaj yeem ua rau muaj kev puas tsuaj.
Hauv cov ntsiab lus, geomembranrane tsim tau xav kom nkag siab txog cov ntaub ntawv kev tshawb fawb, kev suav txhua yam, thiab ib puag ncig kev tshawb pom kev tshawb pom. Los ntawm kev xaiv ncaj ncees thiab kev ua kom zoo dua qub, muaj txiaj ntsig waterproofing thiab ntev- term kev cia siab tuaj yeem ua tiav.
