Kev tiv thaiv ib puag ncig yog ib lub ntsiab lus perpetual thoob ntiaj teb.Raws li tib neeg lub neej txuas ntxiv txhim kho, lub ntiaj teb ib puag ncig tau nce zuj zus.Txhawm rau tswj hwm lub ntiaj teb ib puag ncig qhov tseem ceeb rau tib neeg txoj sia nyob, kev tiv thaiv thiab kev tswj hwm ntawm ib puag ncig yuav nkag mus rau hauv kev hloov pauv ntawm tib neeg kev vam meej.Raws li kev tsim kho kev lag luam tiv thaiv ib puag ncig, geomembranes tau ua lub luag haujlwm tsis tuaj yeem hloov pauv hauv thaj chaw tiv thaiv ib puag ncig hauv xyoo tas los no.Tshwj xeeb, HDPE Geomembrane tau pom qhov tseem ceeb hauv kev tiv thaiv dej thiab tiv thaiv cov dej ntws.
1. HDPE Geomembrane yog dab tsi?
HDPE Geomembrane, nws lub npe tag nrho yog "High-Density Polyethylene Geomembrane," yog cov khoom siv tsis muaj dej tsis zoo thiab cov khoom thaiv uas tsim los siv (nruab nrab) high-density polyethylene resin.Cov khoom muaj kev tiv thaiv zoo rau ib puag ncig kev ntxhov siab tawg, kub tsis kam, tiv thaiv kev laus, thiab kev tiv thaiv corrosion, nrog rau kev siv ntau yam kub (-60- + 60) thiab lub neej ua haujlwm ntev ntawm 50 xyoo.Nws yog dav siv nyob rau hauv anti-seepage tej yaam num xws li lub neej khib nyiab pov tseg seepage tiv thaiv, khoom pov tseg pov tseg seepage tiv thaiv, dej phwj kho cog seepage tiv thaiv, dag lub pas dej seepage tiv thaiv, thiab tailings kho.
2. Qhov zoo ntawm HDPE Geomembrane
(1) HDPE Geomembrane yog cov khoom siv dej hloov pauv tau yooj yim nrog lub siab seepage coefficient.
(2) HDPE Geomembrane muaj cua sov thiab txias tsis kam, nrog rau kev siv ib puag ncig ntawm qhov kub thiab txias ntawm 110 ℃, qis kub -70 ℃;
(3) HDPE Geomembrane muaj tshuaj lom neeg ruaj khov, tuaj yeem tiv taus cov kua qaub, alkalis, thiab roj corrosion, ua rau nws cov khoom siv zoo heev.
(4) HDPE Geomembrane muaj lub zog tensile siab, muab lub zog tensile siab kom tau raws li cov kev xav tau ntawm cov txheej txheem engineering siab.
(5) HDPE Geomembrane muaj zog tiv thaiv huab cua, muaj zog tiv thaiv kev laus, tso cai rau nws tswj nws cov kev ua tau zoo txawm tias ntev ntev.
(6) Lub roughened HDPE Geomembrane txhim khu kev sib txhuam kev ua haujlwm ntawm daim nyias nyias.Piv nrog rau tib cov specification du daim nyias nyias, nws muaj zog tensile zog.Qhov ntxhib ntawm daim nyias nyias muaj cov khoom ntxhib ntawm nws qhov chaw, uas yuav tsim ib txheej me me ntawm daim nyias nyias thiab lub hauv paus thaum lub daim nyias nyias tau nteg, ua kom cov kabmob muaj peev xwm ntawm geomembrane.
II.Cov txheej txheem thiab kev siv ntawm HDPE Geomembrane hauv Field of Landfills
Landfills yog tam sim no feem ntau siv txoj kev kho cov khib nyiab thiab cov khib nyiab hauv tsev, uas yog tus nqi qis, muaj peev xwm ua haujlwm loj, thiab kev ua haujlwm yooj yim.Nws tau siv dav hauv ntau lub teb chaws thiab cheeb tsam thiab yog thawj txoj kev kho mob rau cov khib nyiab hauv tsev hauv ntau lub teb chaws tsim.
High-density polyethylene geomembrane yog cov khoom siv ntau tshaj plaws los tiv thaiv cov dej hauv qhov chaw pov tseg.HDPE Geomembrane sawv tawm ntawm cov khoom lag luam polyethylene nrog nws lub zog siab dua, cov khoom siv tshuaj ruaj khov, thiab kev ua haujlwm zoo los tiv thaiv kev laus, thiab muaj txiaj ntsig zoo los ntawm cov neeg tsim khoom thiab cov tswv ntawm kev lag luam pov tseg.
Kev cog qoob loo feem ntau cuam tshuam txog cov teeb meem ntawm cov kua qaub uas muaj cov tshuaj lom neeg thiab muaj kev phom sij, tshuaj lom neeg, thiab lwm yam teeb meem.Cov khoom siv hauv engineering muaj cov kev siv tsis tshua muaj zog, nrog rau cov yam ntxwv ntawm kev quab yuam, tej yam ntuj tso, kev tshaj tawm, sijhawm, thiab lwm yam, nrog rau ntau yam superimposed.Qhov zoo ntawm cov teebmeem los tiv thaiv kev tawm tsam ncaj qha txiav txim siab engineering zoo, thiab kev pabcuam lub neej ntawm geomembrane kuj yog qhov tseem ceeb hauv kev txiav txim siab lub neej engineering.Yog li ntawd, cov khoom siv los tiv thaiv cov khoom siv rau cov khib nyiab pov tseg yuav tsum muaj kev ua haujlwm zoo los tiv thaiv kev ua haujlwm, biodegradability zoo, thiab kev ua haujlwm zoo antioxidation, thiab lwm yam.
Tom qab xyoo ntawm kev tshawb fawb thiab kev xyaum nyob rau hauv peb lub tuam txhab lub koom haum tshawb fawb geomembrane, lub geomembrane siv nyob rau hauv lub anti-seepage system rau qhov chaw pov tseg yuav tsum tsis tsuas yog ua raws li tam sim no lub teb chaws thiab thoob ntiaj teb cov qauv txheej txheem tab sis kuj ua tau raws li cov hauv qab no:
(1) Lub thickness ntawm HDPE Geomembrane yuav tsum tsis txhob tsawg tshaj li 1.5 hli.Lub thickness ncaj qha txiav txim siab qhov kev ntxhov siab, ua haujlwm ntev, puncture tsis kam, thiab kev ruaj ntseg ntawm qhov chaw pov tseg.
(2) Lub HDPE Geomembrane yuav tsum muaj lub zog tensile, uas tuaj yeem ua kom ntseeg tau tias nws yuav tsis tawg, tsim kua muag, lossis deform thaum lub sijhawm teeb tsa lossis siv, thiab nws tuaj yeem tiv taus lub zog ntawm cov av thiab cov khib nyiab pov tseg nws tus kheej.
(3) HDPE Geomembrane yuav tsum muaj kev tiv thaiv zoo heev, uas tuaj yeem ua kom ntseeg tau tias daim nyias nyias muaj kev ruaj ntseg nyob rau lub sijhawm, thiab yuav tsis muaj "qhov" lossis "kua kua muag" hauv daim nyias nyias uas tuaj yeem ua rau to.
(4) HDPE Geomembrane yuav tsum muaj cov tshuaj tiv thaiv zoo heev, uas tuaj yeem ua kom ntseeg tau tias nws tsis puas los yog corroded los ntawm cov tshuaj muaj pes tsawg leeg ntawm cov khib nyiab pov tseg.Nws kuj tseem yuav tsum muaj kev tiv thaiv zoo rau kev puas tsuaj ntawm cov kab mob lom, uas tuaj yeem lav tias nws yuav tsis raug tawm tsam lossis degraded los ntawm cov kab mob, fungi, lossis lwm yam kab mob uas tuaj yeem pom hauv thaj chaw pov tseg.
(5) Lub HDPE Geomembrane yuav tsum muaj peev xwm tswj tau nws cov kev ua tau zoo los tiv thaiv kev ua haujlwm ntev ntev (piv txwv li, yam tsawg 50 xyoo), uas tuaj yeem ua kom lub neej ua haujlwm ntev ntawm qhov chaw pov tseg.
Ntxiv rau cov kev xav tau saum toj no, HDPE Geomembrane siv rau hauv qhov chaw pov tseg yuav tsum tau tsim thiab teeb tsa raws li cov xwm txheej tshwj xeeb ntawm qhov chaw pov tseg, xws li nws qhov loj, qhov chaw, huab cua, geology, hydrology, thiab lwm yam. Piv txwv li, yog tias qhov chaw pov tseg. yog nyob rau hauv ib cheeb tsam uas muaj cov rooj dej siab, nws yuav tsum tau tsim nrog ob txheej txheej txheej los yog ib qho kev sib sau ua ke uas tuaj yeem tiv thaiv cov dej hauv av.
Zuag qhia tag nrho, kev siv HDPE Geomembrane hauv kev tsim cov av pov tseg yog ib txoj hauv kev zoo los xyuas kom muaj kev nyab xeeb thiab kev tiv thaiv ib puag ncig ntawm cov chaw pov tseg niaj hnub no.Los ntawm kev xaiv cov ntaub ntawv tsim nyog, tsim cov tshuab tsim nyog, thiab ua raws li cov txheej txheem tsim nyog rau kev teeb tsa thiab kev saib xyuas, cov chaw pov tseg tuaj yeem ua kom muaj kev nyab xeeb dua, ua haujlwm tau zoo, thiab ruaj khov dua.
Post lub sij hawm: Mar-31-2023