Geosynthetic rau ib puag ncig kev tsim kho
Geosynthetics muab kev ruaj khov, siab -kev ua tau zoo rau kev tswj kev yaig, kev ruaj khov hauv av, kev tso dej, thiab kev ntim khoom. Weiwo xa cov phiaj xwm- tshwj xeeb, hwm zoo- cov txheej txheem zoo rau kev pov tseg, kev tiv thaiv dej hauv av, thiab kev tsim kho ib puag ncig, ua kom muaj kev ua tau zoo ntev - thiab cov txiaj ntsig tau zoo.
Landfill: ob chav liner system
Hauv cov khib nyiab pov tseg niaj hnub no lossis cov khoom pov tseg hauv nroog (MSW) qhov chaw pov tseg, cov qauv tsim qauv tseem ceeb yog "zero leakage."
GCL thiab Geomembrane Composite Action:Thaum HDPE geomembrane tau nruj nreem tiv thaiv GCL, txawm tias muaj kev puas tsuaj me me, GCL ua haujlwm zoo los thaiv txoj hauv kev vim nws qhov permeability coefficient tsawg heev (k≈10⁻¹¹ m / s) thiab dej- o cov khoom, uas ua rau muaj kev tiv thaiv zoo dua ntawm cov ntaub ntawv ib leeg.
Leachate Collection Layer (LCRS):Feem ntau cov qauv sib xyaw ntawm geonet thiab nonwoven geotextile, qhov no yuav tsum tau suav cov kev xa tawm kom ntseeg tau tias cov kua dej ruaj khov nyob rau hauv cov kev ntxhov siab ib txwm muaj.
Kev kho cov av mos: lub tshuab nqus tsev preloading thiab pvd
Nyob rau hauv ntug dej hiav txwv los yog alluvial tiaj tiaj, cov av mos muaj cov ntsiab lus dej siab thiab compressibility siab. Kev daws teeb meem yog siv PVD (Pulsed Vacuum Dioxide) ua ke nrog lub tshuab nqus tsev.
Radial Consolidation Theory:Tsis zoo li cov dej ntsug ntsug, PVD hloov txoj kev ntws los ntawm txoj kab ntsug ntawm kaum ntawm metres mus rau kab rov tav ntawm ob peb centimeters (ntws mus rau ntawm lub rooj tsavxwm dej).
Smear Effect:Thaum lub sij hawm installation, cov av nyob ib ncig ntawm lub pas dej ua ke yog cuam tshuam, txo nws permeability. Kev tsim qauv yuav tsum suav nrog txoj kab uas hla ntawm thaj tsam smear thiab qhov cuam tshuam kev cuam tshuam; txwv tsis pub, qhov tseeb consolidation tus nqi yuav qeeb qeeb dua li tus nqi theoretical.
Zoo kuj:Thaum lub rooj tsavxwm tso dej ntev heev (tshaj 25m), qhov kev txwv ntawm lub rooj tsavxwm yuav tsum tau txiav txim siab.
Rub- tawm thiab sab hauv kev ruaj ntseg ntawm cov av ntxiv (MSE)
Hauv txoj kab nqes hav thiab khaws cov phab ntsa engineering, Geogrid txhim kho tag nrho lub zog thiab ruaj khov ntawm cov av los ntawm kev sib tshuam. Tus qauv tsim yuav tsum xav txog qhov txo qis qis (RFcr) thiab txiav txim siab ntev - lub sij hawm tsim lub zog (Tal) raws li cov khoom siv PET, PP, lossis HDPE. Nyob rau tib lub sijhawm, kev rub tawm - tawm kev sim yuav tsum tau ua los txiav txim siab qhov ntev anchorage zoo, nrog rau qhov tsis xws li kev sib cuam tshuam coefficient thiab cuam tshuam ntawm kev ntxhov siab ib txwm muaj. Tsis tas li ntawd, qhov kev pheej hmoo tseem ceeb hauv kev khaws cov phab ntsa engineering feem ntau yog nyob rau hauv kev sib txuas ntawm lub zog ntawm geogrid thiab vaj huam sib luag, uas yuav tsum tau txheeb xyuas los ntawm kev sib txuas tshwj xeeb.
Tailings dam thiab zaum kawg capping system
Hauv kev kho ib puag ncig, qhov nyuaj tshaj plaws yog kaw cov chaw tsis huv los tiv thaiv cov dej los nag.
Kev sib tw tseem ceeb: Kev ruaj ntseg nqes hav
Nyob rau hauv qhov chaw kaw tshuab, lub interface kev sib txhuam lub kaum sab xis ntawm lub geomembrane nto yog qhov tseem ceeb.
Textured Geomembrane:Txhawm rau tiv thaiv cov av los ntawm zawv zawg hauv daim nyias nyias, yuav tsum tau siv daim nyias nyias uas muaj qhov roughened.
Interlayer Shear Strength:Cov kws tsim khoom yuav tsum sim cov yam ntxwv sib txhuam ntawm cov av -geotextile- cov txheej geomembrane siv tus loj - nplai ncaj shear tester. Yog tias txoj kab nqes siab dhau lawm, geocells yuav raug qhia kom encapsulate cov nroj tsuag.
Technical parameter sib piv cov lus: geosynthetics
| Daim ntawv thov scenario | Qhov tseem ceeb mechanical indicators | Pom zoo cov khoom specifications |
| Pem Hauv Ntej / Pem Teb | Puncture Resistance, Interface Shear Strength | 2.0mm HDPE (Smooth / Textured) +4.8kg / m2 GCL |
| Landfill Side Slopes | Tensile Strength, Creep Resistance, Interface Friction | Muab ob npaug rau-Textured HDPE Geomembrane + Non-woven Nruam Filament Geotextile |
| Riverbank / Channel tiv thaiv | UV Resistance, Percent Open Area (POA), Permissible Shear Stress | Polypropylene (PP) 3D Turf Reinforcement Mats (TRMs) / Geomat |
| Dewatering Geotextile Tubes (Sludge Management) | Dav - Dav Tensile Strength (Machine/Cross Direction), Pom Qhov Loj (AOS), Flow Rate | Siab -Lub zog Woven Geotextile (PET lossis PP) |