Xov xwm

Scope ntawm nteg composite geomembrane

Kev ua haujlwm ntawm lub neej kev ua haujlwm ntawm kev sib xyaw geomembrane feem ntau yog txiav txim siab los ntawm seb cov yas zaj duab xis puas raug rau kev kho 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 rau hydraulic engineering yuav ua hauj lwm rau 40 mus rau 50 xyoo nyob rau hauv dej huv thiab 30 mus rau 40 xyoo nyob rau hauv dej phwj tuaj.Lub Tuam Txhab Zhoutou Reservoir Dam Ameslikas yog ib qho tseem ceeb ntawm phab ntsa, tab sis vim yog lub pas dej ua ke, lub sab sauv ntawm cov tub ntxhais phab ntsa raug tshem tawm.Yuav kom tswj tau qhov kev ua tau zoo ntawm kev tiv thaiv sab sauv, ib phab ntsa anti-seepage inclined tau ntxiv rau hauv paus.Raws li qhov kev nyab xeeb ua qauv qhia thiab decomposition ntawm Zhoutou Reservoir Dam, txhawm rau tiv thaiv cov dej ntws tsis muaj zog thiab lub hauv paus dej ntws los ntawm kev rov ua av ntawm lub pas dej, impervious lub cev qauv xws li bedrock curtain grouting, sib ntaus sib tua nto grouting, flushing thiab gripping zoo backfilling ntaub, thiab high-pressure dav hlau grouting impervious phaj phab ntsa tau saws nyob rau hauv cov nqe lus ntawm ntsug seepage tiv thaiv.
Cov yam ntxwv ntawm kev sib xyaw geomembrane: Cov khoom sib xyaw geomembrane yog cov khoom siv geomembrane tsim los ntawm cov yas zaj duab xis raws li cov khoom siv los tiv thaiv cov substrate thiab nonwoven fabric.Nws cov kev ua haujlwm los tiv thaiv dej yog nyob ntawm kev ua haujlwm ntawm cov yeeb yaj kiab yas.Nws cov txheej txheem nro yog tias lub impermeability ntawm cov yas zaj duab xis insulates cov dej ntws ntawm lub ntiaj teb dam los ntawm cov dej, withstanding dej siab thiab adapting rau lub pas dej ua ke deformation vim nws loj tensile zog thiab qeeb tus nqi;Cov ntaub tsis woven kuj yog cov khoom siv tshuaj ntawm luv luv polymer fibers, uas yog tsim los ntawm koob punching los yog thermal bonding, thiab muaj zog tensile siab thiab qeeb.Tom qab kev sib cuag nrog cov yeeb yaj kiab yas, nws tsis tsuas yog ua kom lub zog tensile thiab puncture tsis kam ntawm cov yas zaj duab xis, tab sis kuj ua rau kom muaj kev sib txhuam coefficient ntawm kev sib ntaus sib tua vim cov ntsiab lus ntxhib ntawm cov ntaub tsis woven, uas muaj txiaj ntsig zoo rau kev ruaj ntseg ntawm cov geomembranes. thiab zais cov khaubncaws sab nraud povtseg.
Yog li ntawd, kev ua haujlwm lub neej ntawm cov khoom sib xyaw geomembrane yog txaus los ua kom txaus siab rau lub neej ua haujlwm thov rau kev tiv thaiv dams.
Sab saum toj inclined phab ntsa yog them nrog composite geomembrane rau seepage tiv thaiv, nrog rau sab qis tom qab ntsug seepage tiv thaiv phab ntsa thiab sab sauv mus txog qhov siab ntawm 358.0m (0.97m siab tshaj qhov ntsuas dej nyab).
Kub kub kuj, zoo antifreeze kev ua tau zoo.
Tam sim no, cov yeeb yaj kiab yas siv rau kev tswj xyuas hauv tsev thiab txawv teb chaws muaj xws li polyvinyl chloride (PVC) thiab polyethylene (PE), uas yog cov khoom siv polymer hloov tau yooj yim nrog qhov hnyav, muaj zog qeeb, thiab hloov tau siab rau deformation.
Nyob rau tib lub sijhawm, lawv muaj kev tiv thaiv zoo rau cov kab mob thiab tshuaj lom neeg, thiab tsis ntshai ntawm acid, alkali, thiab ntsev corrosion.