I-geomembrane yedama ledama

Inkcazo emfutshane:

Iigeomembrane ezisetyenziselwa amadama okugcina amanzi zenziwe ngezinto zepolymer, ikakhulu i-polyethylene (PE), i-polyvinyl chloride (PVC), njl. Ezi zinto zingenamanzi amaninzi kwaye zinokuthintela ngokufanelekileyo amanzi ukuba angangeni. Umzekelo, i-polyethylene geomembrane iveliswa yi-polymerization reaction ye-ethylene, kwaye isakhiwo sayo se-molecular sincinci kangangokuba iimolekyuli zamanzi azinakudlula kuyo.

Iinkcukacha zeMveliso

Iigeomembrane ezisetyenziselwa amadama okugcina amanzi zenziwe ngezinto zepolymer, ikakhulu i-polyethylene (PE), i-polyvinyl chloride (PVC), njl. Ezi zinto zingenamanzi amaninzi kwaye zinokuthintela ngokufanelekileyo amanzi ukuba angangeni. Umzekelo, i-polyethylene geomembrane iveliswa yi-polymerization reaction ye-ethylene, kwaye isakhiwo sayo se-molecular sincinci kangangokuba iimolekyuli zamanzi azinakudlula kuyo.

1.Iimpawu zokusebenza

Ukusebenza okuchasene nokuvuza kwamanzi:
Le yeyona ndlela ibalulekileyo yokusebenza kwee-geomembranes ekusebenziseni amadama okugcina amanzi. Ii-geomembranes ezikumgangatho ophezulu zinokuba ne-permeability coefficient efikelela kwi-10⁻¹² - 10⁻¹³ cm/s, phantse ivale ngokupheleleyo indlela yamanzi. Xa kuthelekiswa nomaleko wendabuko wodongwe othintela ukuvuza kwamanzi, isiphumo sawo sokungavuki kwamanzi simangalisa ngakumbi. Umzekelo, phantsi koxinzelelo olufanayo lwentloko yamanzi, ubuninzi bamanzi aphuma kwi-geomembrane buncinci kakhulu kunalowo umaleko wodongwe othintela ukuvuza kwamanzi.
Ukusebenza kokungabhobozi:
Ngexesha lokusetyenziswa kwee-geomembranes kumadama agcina amanzi, zinokugqojozwa zizinto ezibukhali ezifana namatye namasebe ngaphakathi komzimba wedama. Ii-geomembranes ezilungileyo zinamandla aphezulu okulwa nokubhoboza. Umzekelo, ezinye ii-geomembranes ezidityanisiweyo zineeleya zokuqinisa ifayibha yangaphakathi ezinokumelana ngempumelelo nokubhoboza. Ngokubanzi, amandla okulwa nokubhoboza kwee-geomembranes ezifanelekileyo anokufikelela kwi-300 - 600N, okuqinisekisa ukuba aziyi konakala lula kwindawo enzima yomzimba wedama.
Ukumelana nokwaluphala:
Ekubeni amadama okugcina amanzi ehlala ixesha elide, ii-geomembrane kufuneka zibe nokumelana okuhle nokuguga. Ii-arhente zokulwa nokuguga zongezwa ngexesha lenkqubo yokuvelisa ii-geomembrane, nto leyo evumela ukuba zigcine ukusebenza okuzinzileyo ixesha elide phantsi kwempembelelo yeemeko zokusingqongileyo ezifana nemitha ye-ultraviolet kunye notshintsho lobushushu. Umzekelo, ii-geomembranes ezicutshungulwe ngeefomyula kunye neendlela ezikhethekileyo zinokuba nobomi benkonzo beminyaka engama-30 ukuya kwengama-50 ngaphandle.
Ukuguquguquka kokuguquguquka:
Idama liza kujamelana nokuguquguquka okuthile okufana nokuhlaliswa kunye nokufuduka ngexesha lenkqubo yokugcina amanzi. Ii-geomembranes zinokukwazi ukuziqhelanisa nokuguquguquka okunjalo ngaphandle kokuqhekeka. Umzekelo, zinokolula kwaye zigobe ukuya kwinqanaba elithile kunye nokuhlaliswa komzimba wedama. Amandla azo okuxinana ngokubanzi anokufikelela kwi-10 - 30MPa, nto leyo evumela ukuba zikwazi ukumelana noxinzelelo olubangelwa kukuguquguquka komzimba wedama.

Ubukhulu be-geomembrane buhlala buyi-0.3mm ukuya kwi-2.0mm.
- Ukungangeni: Qinisekisa ukuba i-geomembrane inokungangeni kakuhle ukuthintela amanzi emhlabeni ukuba angangeni kwiprojekthi.

2. Amanqaku aPhambili oKwakha

Unyango oluSisiseko:
Ngaphambi kokubeka ii-geomembranes, isiseko sedama kufuneka sibe sithi tyaba kwaye siqine. Izinto ezibukhali, ukhula, umhlaba okhululekileyo kunye namatye kumphezulu wesiseko kufuneka zisuswe. Umzekelo, impazamo yokuthamba kwesiseko ngokubanzi kufuneka ilawulwe ngaphakathi kwe-±2cm. Oku kunokuthintela i-geomembrane ekukrweleni kwaye kuqinisekiswe unxibelelwano oluhle phakathi kwe-geomembrane kunye nesiseko ukuze ukusebenza kwayo okuchasene nokuphuma kwamanzi kusebenze.
Indlela Yokubeka:
Ii-geomembrane zihlala zidityaniswa ngokuwelda okanye ngokubophelela. Xa kudityaniswa, kuyimfuneko ukuqinisekisa ukuba ubushushu bokuwelda, isantya kunye noxinzelelo zifanelekile. Umzekelo, kwii-geomembrane ezifakwe ubushushu, ubushushu bokuwelda buhlala buphakathi kwama-200 - 300 °C, isantya sokuwelda simalunga ne-0.2 - 0.5m/min, kwaye uxinzelelo lokuwelda luphakathi kwe-0.1 - 0.3MPa ukuqinisekisa umgangatho wokuwelda kunye nokuthintela iingxaki zokuvuza ezibangelwa kukuwelda okungekho semgangathweni.
Uqhagamshelo lwePeripheral:
Uqhagamshelwano lwee-geomembranes nesiseko sedama, iintaba kumacala omabini edama, njl.njl. kumda wedama lubaluleke kakhulu. Ngokubanzi, kuya kwamkelwa imisele yokubambelela, i-concrete cap, njl.njl.. Umzekelo, umsele wokubambelela onobunzulu obuyi-30 - 50cm ubekwe kwisiseko sedama. Umphetho we-geomembrane ubekwa kumsele wokubambelela kwaye uqiniswe ngezinto zomhlaba ezixineneyo okanye i-concrete ukuqinisekisa ukuba i-geomembrane iqhagamshelwe ngokuqinileyo kwizakhiwo ezijikelezileyo kwaye ithintele ukuvuza okungaphandle.

3. Ulondolozo kunye nokuhlolwa

Ukugcinwa Kwemihla ngemihla:
Kuyimfuneko ukujonga rhoqo ukuba kukho umonakalo, ukukrazuka, ukubhobozwa, njl.njl. kumphezulu we-geomembrane. Umzekelo, ngexesha lokusebenza kwedama, abasebenzi bokulungisa banokwenza uhlolo kube kanye ngenyanga, begxile ekujongeni i-geomembrane kwiindawo apho inqanaba lamanzi litshintsha rhoqo kunye neendawo ezine-deformation enkulu yomzimba wedama.
Iindlela zokuhlola:
Iindlela zokuvavanya ezingatshabalalisiyo zingasetyenziswa, njengendlela yokuvavanya i-spark. Kule ndlela, kusetyenziswa i-voltage ethile kumphezulu we-geomembrane. Xa kukho umonakalo kwi-geomembrane, ii-spark ziya kuveliswa, ukuze iindawo ezonakeleyo zifumaneke ngokukhawuleza. Ukongeza, kukwakho nendlela yokuvavanya i-vacuum. Indawo evaliweyo yenziwa phakathi kwe-geomembrane kunye nesixhobo sokuvavanya, kwaye ukubakho kokuvuza kwi-geomembrane kugwetywa ngokujonga utshintsho kwi-vacuum degree.