Hauv ib puag ncig niaj hnub thiab kev tsim kho pej xeem, tswj cov kua dej tsiv teb chaws yog qhov tseem ceeb rau cov phiaj xwm zoo li cov av qias neeg, cov dej khov, thiab cov tshuab muaj. Ib qho khoom uas ua lub luag haujlwm tseem ceeb hauv cov ntawv thov no yog qhovGeosynthetic av nplaum(Gcl)Cov. Cov ntawv no tshawb txog qhov kev tso cai ntawmGeoSynthetic av nplaum Lineers, piav qhia lawv cov qauv, kev ua haujlwm, thiab vim li cas lawv xaiv rau kev xaiv cov kev nyuaj siab.
Kev to taubGeoSynthetic av nplaum Lineers
IbGeosynthetic av nplaumyog cov khoom siv sib xyaw ua ke ua ke ua ke geototextiles, bentonite av nplaum, thiab qee zaum geomembranes. Cov tub ntxhais tivthaiv-sodium bentonite-yog ib qho av nplaum uas tsw heev uas thaum hydrated, sib sau ua ib qho tsawg kawg-permeability. Sandsiched nruab nrab ntawm txheej ntawm geotextiles, cov av nplaum txheej no ua kom muaj txiaj ntsig thaum ua kev tswj hwm.
Lub permeability ntawm aGeosynthetic av nplaumyog hais txog nws lub peev xwm los txwv tsis muaj dej ntws. Kev ntsuas ntsuas ntawm hydraulic conductivity (feem ntau ≤1 × 10 teev rau GCLs tshwj xeeb hauv kev tiv thaiv kev tiv thaiv lossis kua dej los ntawm cov qauv sib cav.
Vim li cas permeability tseem ceeb nyob rau hauvGeoSynthetic av nplaum Lineers
Permeability yog qhov kev txhais tus yam ntxwv ntawm ib qho kev cuam tshuam nrog. RauGeoSynthetic av nplaum Lineers, Tsawg permeability kom ntseeg tau:
1. txiav kev tiv thaiv: Tiv thaiv kev ua kom muaj chaw nyob ntawm cov av pov tseg los ntawm kev pom hauv cov av.
2.12 Kev Kawm Txuj Ci: Txo kev yaig hauv lub pas dej tauv lossis canals los ntawm kev txo cov dej pom.
3.Qhov kev ua raws cai: Ua tau raws cov qauv nruj rau cov qauv muaj nyob hauv cov phiaj xwm kev lag luam.
Lub peev xwm o opium bentonite yog qhov tseem ceeb ntawm no. Thaum hydrated, cov av nplaum nthuav dav txog 15 zaug nws qhuav ntim, sau voids thiab tsim cov txheej txheem impleleable. Txawm nyob rau hauv high high hervov, kom tau nruabGeoSynthetic av nplaum Lineerstswj lawv qhov kev ua tau zoo.
Yam cuam tshuam rau cov permeability ntawmGeoSynthetic av nplaum Lineers
Thaum GCLs yog txhim khu kev qha, lawv cov permeability tuaj yeem sib txawv raws li:
--Moisture cov ntsiab lus: Lub bentonite qhuav muaj siab dua permeability; Hydration ua kom ua tau nws cov khoom ntim sealing.
--Compaction thiab kev kaw: Txaus siab thaum lub sij hawm thaum teeb tsa kom muaj kev faib cov av nplaum uas muaj kev faib tawm.
--Chemical compatibility: Raug rau cov tshuaj muaj kuab txhoj puab heev (piv txwv li, kua hauv qab ntsev) yuav txo qis qhov muaj peev xwm o.
Kev kuaj nyob rau hauv cov kev mob tshwj xeeb yog qhov tseem ceeb rau kev siv tau aGeosynthetic av nplaumkev ua tau zoo.
Cov ntawv thov leveraging low permeability ntawmGeoSynthetic av nplaum Lineers
1.Landce caps thiab cov hauv paus: GCLS yog dav siv raws li cov ntaub pua thib ob hauv qab geomembranes muaj kev phom sij.
2.Ntawv Ua Haujlwm: Lawv tiv thaiv cov kua qaub mine dej los ntawm kev paug ib puag ncig ntawm ecosystem.
3.watertructure: Hauv cov kwj dej lossis pas dej, GCLS tsawg dhau ntawm cov khoom poob txaus.
Piv rau cov kev ua kom cov av nplaum ib txwm muaj (CCLS),GeoSynthetic av nplaum LineersMuab cov kev teeb tsa ceev nrawm, txo cov tuab, thiab zoo sib xws.
Tu thiab thiav ntawmGeoSynthetic av nplaum Lineers
Kev teeb tsa yog qhov tseem ceeb. Punctures lossis kev sib tshooj tsis txaus ntawm GCL Rolls tuaj yeem hais kom haum rau permeability. Sij hawm dhau los, Bentonite tus kheej tus kheej cov ntsaws ruaj ruaj, tab sis kev tshuaj ntsuam tas li tau pom zoo. Thaum tiv thaiv los ntawm UV raug thiab kev ntxhov siab, aGeosynthetic av nplaumtuaj yeem nyob ntev xyoo lawm.
Lub neej tom ntejGeoSynthetic av nplaum Lineers
Kev nce qib hauv cov khoom science yog txhim kho GCL permeability ua tau. Kev nrhav hluav taws xob zoo li polymer-txhim kho bentonite lossis hybrid liners (sib txuas ua ke nrog geomembranes thiab kev hloov kho kom haum ib puag ncig.
Tag
GeoSynthetic av nplaum Lineersyog lub hauv paus ntawm cov tshuab muaj niaj hnub, muab cov kev tswj hwm tus tswj kav ntev. Lawv sib xyaw ntawm geosynthetics thiab ntuj av nplaum muab nqi-zoo, eco-tus phooj ywg daws teeb meem rau cov teeb meem hauv dej. Raws li kev lag luam ua ntej ua ntej ua ntej, qhov kev thov rau kev ua tau zooGeoSynthetic av nplaum Lineersyuav tsuas loj hlob.
Los ntawm kev nkag siab lawv cov me nyuam tshuab thiab kev siv, engineers siv tau zoo dua, kom muaj kev nyab xeeb dua, kom ruaj khov rau cov tsev nyob thoob ntiaj teb.
Lub Sijhawm Post: Feb-21-2025