Reservoir da dej geomembrane
Lus piav qhia luv luv:
- Geomembranes siv rau lub pas dej da dej yog tsim los ntawm cov ntaub ntawv polymer, feem ntau yog polyethylene (PE), polyvinyl chloride (PVC), thiab lwm yam. Piv txwv li, polyethylene geomembrane yog tsim los ntawm cov tshuaj tiv thaiv polymerization ntawm ethylene, thiab nws cov qauv molecular yog li compact uas dej molecules tsis tuaj yeem dhau los ntawm nws.
- Geomembranes siv rau lub pas dej da dej yog tsim los ntawm cov ntaub ntawv polymer, feem ntau yog polyethylene (PE), polyvinyl chloride (PVC), thiab lwm yam. Piv txwv li, polyethylene geomembrane yog tsim los ntawm cov tshuaj tiv thaiv polymerization ntawm ethylene, thiab nws cov qauv molecular yog li compact uas dej molecules tsis tuaj yeem dhau los ntawm nws.
1.Cov yam ntxwv ua haujlwm
- Anti-seepage Performance:
Qhov no yog qhov tseem ceeb tshaj plaws ntawm kev ua haujlwm ntawm geomembranes hauv kev siv cov dams reservoir. Cov geomembranes zoo tuaj yeem muaj qhov sib txawv permeability ncav cuag 10⁻¹² - 10⁻¹³ cm / s, yuav luag tag nrho thaiv cov dej. Piv nrog rau cov tsoos av nplaum anti-seepage txheej, nws cov nyhuv anti-seepage yog qhov zoo tshaj plaws. Piv txwv li, nyob rau hauv tib lub taub hau dej siab, tus nqi ntawm cov dej seeping los ntawm lub geomembrane tsuas yog ib feem ntawm qhov ntawd los ntawm cov av nplaum anti-seepage txheej. - Anti-puncture Performance:
Thaum siv cov geomembranes ntawm cov pas dej da dej, lawv tuaj yeem raug ntaus los ntawm cov khoom ntse xws li pob zeb thiab ceg ntoo hauv lub pas dej. Cov geomembranes zoo muaj qhov muaj zog tiv thaiv kev sib tsoo. Piv txwv li, qee qhov sib xyaw geomembranes muaj cov txheej txheem fiber ntau sab hauv uas tuaj yeem tiv taus kev sib tsoo. Feem ntau hais lus, lub zog tiv thaiv ntawm cov geomembranes tsim nyog tuaj yeem ncav cuag 300 - 600N, kom ntseeg tau tias lawv yuav tsis yooj yim puas nyob rau hauv ib puag ncig ntawm lub pas dej ua ke. - Kev laus Resistance:
Txij li cov dams reservoir muaj lub neej ua haujlwm ntev, geomembranes yuav tsum muaj kev laus zoo. Cov tshuaj tiv thaiv kev laus tau ntxiv thaum lub sijhawm tsim cov txheej txheem ntawm geomembranes, ua rau lawv muaj kev ruaj khov rau lub sijhawm ntev nyob rau hauv kev cuam tshuam ntawm ib puag ncig xws li ultraviolet rays thiab kub hloov. Piv txwv li, geomembranes ua tiav nrog cov qauv tshwj xeeb thiab cov txheej txheem tuaj yeem muaj lub neej ua haujlwm ntawm 30 - 50 xyoo sab nraum zoov. - Deformation Adaptability:
Lub pas dej ua ke yuav tau txais qee yam deformations xws li kev sib haum xeeb thiab kev hloov chaw thaum lub sijhawm khaws dej. Geomembranes tuaj yeem hloov mus rau qhov deformations yam tsis muaj kev tawg. Piv txwv li, lawv tuaj yeem ncab thiab khoov rau qee yam nrog rau kev sib haum xeeb ntawm lub pas dej ua ke. Lawv lub zog tensile feem ntau tuaj yeem ncav cuag 10 - 30MPa, ua rau lawv tuaj yeem tiv taus qhov kev ntxhov siab los ntawm qhov deformation ntawm lub pas dej ua ke.
kness raws li qhov xav tau ntawm qhov project. Lub thickness ntawm lub geomembrane feem ntau yog 0.3mm txog 2.0mm.
- Impermeability: Xyuas kom meej tias lub geomembrane muaj qhov zoo impermeability los tiv thaiv dej hauv av los ntawm kev nkag mus rau hauv qhov project.
2.Cov ntsiab lus tseem ceeb ntawm kev tsim kho
- Kev kho mob hauv paus:
Ua ntej tso geomembranes, lub hauv paus ntawm lub pas dej yuav tsum tiaj tus thiab ruaj khov. Cov khoom ntse, cov nroj tsuag, cov av xoob thiab pob zeb ntawm qhov chaw ntawm lub hauv paus yuav tsum tau muab tshem tawm. Piv txwv li, qhov kev ua yuam kev flatness ntawm lub hauv paus feem ntau yuav tsum tau tswj tsis pub dhau ± 2cm. Qhov no tuaj yeem tiv thaiv cov geomembrane los ntawm khawb thiab xyuas kom muaj kev sib cuag zoo ntawm geomembrane thiab lub hauv paus kom nws cov kev ua tau zoo los tiv thaiv cov dej ntws tawm. - Txheej Txheej:
Geomembranes feem ntau yog spliced los ntawm vuam los yog kev sib txuas. Thaum vuam, nws yog ib qho tsim nyog los xyuas kom meej tias qhov vuam kub, ceev thiab siab yog tsim nyog. Piv txwv li, rau cov cua sov-welded geomembranes, qhov vuam kub feem ntau yog nruab nrab ntawm 200 - 300 ° C, qhov vuam ceev yog li 0.2 - 0.5m / min, thiab vuam siab yog nyob nruab nrab ntawm 0.1 - 0.3MPa los xyuas kom meej vuam zoo thiab tiv thaiv. teeb meem los ntawm kev vuam tsis zoo. - Kev sib txuas Peripheral:
Kev sib txuas ntawm geomembranes nrog lub hauv paus pas dej ua ke, cov roob ntawm ob sab ntawm lub pas dej, thiab lwm yam. ntawm qhov chaw ntawm lub pas dej yog qhov tseem ceeb heev. Feem ntau, anchoring trench, qhob capping, thiab lwm yam yuav raug saws. Piv txwv li, ib qho trench nrog qhov tob ntawm 30 - 50 cm yog teem rau ntawm lub pas dej ua ke. Lub ntug ntawm lub geomembrane yog muab tso rau hauv lub anchoring trench thiab tsau nrog compacted av cov ntaub ntawv los yog ua vaj tse kom ntseeg tau tias lub geomembrane yog nruj nreem txuas nrog cov nyob ib puag ncig cov qauv thiab tiv thaiv peripheral to.
3.Kev kho thiab tshuaj xyuas
- Kev tu txhua hnub:
Nws yog ib qho tsim nyog yuav tsum tsis tu ncua xyuas seb puas muaj kev puas tsuaj, kua muag, punctures, thiab lwm yam nyob rau saum npoo ntawm geomembrane. Piv txwv li, thaum lub sijhawm ua haujlwm ntawm lub pas dej, cov neeg ua haujlwm saib xyuas tuaj yeem tshawb xyuas ib hlis ib zaug, tsom mus rau kev tshuaj xyuas cov geomembrane nyob rau hauv cov cheeb tsam uas cov dej hloov nquag thiab cov cheeb tsam uas muaj cov dej loj loj ntawm lub cev deformations. - Kev tshuaj xyuas:
Cov txheej txheem kuaj tsis muaj kev puas tsuaj tuaj yeem raug coj los siv, xws li lub txim hluav taws xob. Nyob rau hauv txoj kev no, ib qho voltage yog siv rau saum npoo ntawm geomembrane. Thaum muaj kev puas tsuaj rau lub geomembrane, sparks yuav raug generated, yog li ntawd cov ntsiab lus puas tuaj yeem nyob tau sai. Tsis tas li ntawd, kuj tseem muaj txoj hauv kev kuaj lub tshuab nqus tsev. Qhov chaw kaw yog tsim los ntawm geomembrane thiab cov cuab yeej ntsuas, thiab qhov muaj nyob ntawm cov dej xau hauv geomembrane yog txiav txim los ntawm kev soj ntsuam qhov hloov pauv ntawm lub tshuab nqus tsev.
Khoom parameters
