Geomembrane yog tsim los ntawm cov yas zaj duab xis raws li cov khoom siv los tiv thaiv kev sib tsoo thiab cov ntaub tsis-woven. Qhov kev ua tau zoo ntawm cov geomembrane feem ntau yog nyob ntawm qhov kev ua tau zoo ntawm cov yeeb yaj kiab yas. Cov yeeb yaj kiab yas siv los tiv thaiv cov dej ntws tawm hauv tebchaws thiab thoob ntiaj teb feem ntau suav nrog polyvinyl chloride, polyethylene, thiab ethylene / vinyl acetate copolymer. Nws yog cov khoom siv hluav taws xob hloov pauv tau yooj yim nrog cov khoom me me, muaj zog ductility, muaj zog deformation adaptability, corrosion kuj, tsis kub tsis kam, thiab zoo Frost kuj. Qhov thib ob, lub luag haujlwm tseem ceeb thiab kev siv ntawm cov yeeb yaj kiab yas tau qhia.
Lub luag haujlwm tseem ceeb
Ib. Nws integrates anti-seepage thiab kua dej ua haujlwm, thiab muaj kev sib cais thiab kev txhawb zog.
2. High composite zog, siab tev lub zog, thiab siab puncture kuj.
Peb. Cov dej muaj peev xwm muaj zog, kev sib txhuam coefficient siab, thiab qis linear expansion coefficient.
4. Zoo aging kuj, dav kub ntau, thiab ruaj khov zoo.
Composite geomembrane yog geotextile anti-seepage cov ntaub ntawv uas muaj li ntawm yas zaj duab xis raws li anti-seepage substrate thiab non-woven npuag. 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 los tiv thaiv cov ntawv thov hauv tsev thiab thoob ntiaj teb feem ntau suav nrog polyvinyl chloride (PVC), polyethylene (PE), thiab ethylene / vinyl acetate copolymer (EVA). Lawv yog ib hom ntawm cov khoom siv polymer uas hloov tau yooj yim nrog lub ntiajteb txawj nqus, muaj zog extensibility, siab adaptability rau deformation, corrosion kuj, tsis kub tsis kam, thiab zoo Frost kuj.
Kev pabcuam lub neej ntawm cov khoom sib xyaw geomembranes feem ntau yog txiav txim siab los ntawm seb cov yas zaj duab xis poob nws cov khoom tiv thaiv dej thiab dej-resistant. Raws li Soviet lub teb chaws qauv, polyethylene films nrog ib tug tuab ntawm 0.2m thiab stabilizers siv nyob rau hauv dej engineering yuav ua hauj lwm rau 40-50 xyoo nyob rau hauv dej ntshiab thiab 30-40 xyoo nyob rau hauv dej phwj tuaj. Yog li ntawd, kev pab cuam lub neej ntawm kev sib xyaw geomembrane yog txaus kom ua tau raws li qhov yuav tsum tau ua los tiv thaiv cov dej ntws ntawm lub pas dej.
Scope ntawm geomembrane
Lub pas dej ntawm lub pas dej tauv yog ib qho tseem ceeb ntawm phab ntsa, tab sis vim yog lub pas dej sib tsoo, lub sab sauv ntawm cov tub ntxhais phab ntsa raug txiav. Yuav kom daws tau qhov teeb meem ntawm sab sauv anti-seepage, ib tug anti-seepage inclined phab ntsa yog Ameslikas ntxiv. Raws li kev soj ntsuam kev nyab xeeb thiab kev soj ntsuam ntawm Zhoutou Reservoir dam, txhawm rau daws qhov tsis muaj zog to ntawm qhov chaw thiab lub hauv paus dej ntws los ntawm ntau qhov av nkos ntawm lub pas dej, ntsug los tiv thaiv kev ntsuas xws li bedrock curtain grouting, tiv tauj nto grouting, yaug thiab rub lub tes tsho zoo backfilling curtain, thiab high-pressure spray anti-seepage phaj phab ntsa raug saws. Sab saum toj inclined phab ntsa yog them nrog composite geomembrane rau anti-seepage, thiab txuas nrog ntsug anti-seepage phab ntsa nyob rau hauv qab, ncav ib qhov siab ntawm 358.0m (0.97m saum toj no dej nyab theem).
ua haujlwm loj
1. Kev sib koom ua ke los tiv thaiv cov dej ntws thiab cov dej ntws tawm, thaum tseem muaj cov haujlwm xws li kev sib cais thiab kev txhawb nqa.
2. High composite zog, siab tev lub zog, thiab siab puncture kuj.
3. Muaj peev xwm ua kom muaj zog, kev sib txhuam coefficient siab, thiab qis linear expansion coefficient.
4. Zoo aging kuj, dav adaptability rau ib puag ncig kub ntau, thiab ruaj khov zoo.
Post lub sij hawm: Oct-30-2024