Uvimba wedama geomembrane
Inkcazelo emfutshane:
- IiGeomembranes ezisetyenziselwa amadama okugcina amanzi zenziwe ngemathiriyeli yepolymer, ikakhulu ipolyethylene (PE), i-polyvinyl chloride (PVC), njl. Ngokomzekelo, i-polyethylene geomembrane iveliswa nge-polymerization reaction ye-ethylene, kwaye isakhiwo sayo se-molecular sihlangene kangangokuba iimolekyuli zamanzi azikwazi ukudlula kuyo.
- IiGeomembranes ezisetyenziselwa amadama okugcina amanzi zenziwe ngemathiriyeli yepolymer, ikakhulu ipolyethylene (PE), i-polyvinyl chloride (PVC), njl. Ngokomzekelo, i-polyethylene geomembrane iveliswa nge-polymerization reaction ye-ethylene, kwaye isakhiwo sayo se-molecular sihlangene kangangokuba iimolekyuli zamanzi azikwazi ukudlula kuyo.
1.Iimpawu zoMsebenzi
- Ukwenziwa kwe-Anti-seepage:
Lo ngowona msebenzi ubalulekileyo wegeomembranes ekufakweni kwamadama agcina amanzi. I-geomembranes ekumgangatho ophezulu inokuba ne-coefficient yokungena ifikelele kwi-10⁻¹² - 10⁻¹³ cm/s, iphantse ivalele ngokupheleleyo ukudlula kwamanzi. Xa kuthelekiswa nodongwe lwemveli anti-seepage umaleko, impembelelo yayo anti-seepage iphawuleka kakhulu ngakumbi. Umzekelo, phantsi koxinzelelo lwentloko yamanzi efanayo, ubungakanani bamanzi angena kwi-geomembrane liqhezu nje lalo ngodongwe oluchasene ne-seepage layer. - Umsebenzi wokuchasana nokugqobhoza:
Ngexesha lokusetyenziswa kwee-geomembranes kumadama agcina amanzi, zinokugqobhozwa zizinto ezibukhali ezifana namatye kunye namasebe ngaphakathi emzimbeni wedama. Ii-geomembranes ezilungileyo zinamandla aphezulu okuchasa ukugqobhoza. Umzekelo, ezinye iigeomembranes ezidityanisiweyo zineeleya zangaphakathi zokuqinisa ifayibha ezinokuxhathisa ngokufanelekileyo ukugqobhoza. Ngokuqhelekileyo, amandla achasene nokugqobhoza kwee-geomembranes eziqeqeshiweyo anokufikelela kwi-300 - 600N, eqinisekisa ukuba aziyi konakala lula kwindawo enzima yomzimba wedama. - Ukuxhathisa ukuguga:
Kuba amadama okugcina amanzi anobomi obude benkonzo, ii-geomembranes kufuneka zibe nokuxhathisa kakuhle ukwaluphala. I-Anti-aging agents zongezwa ngexesha lenkqubo yokuvelisa i-geomembranes, ezenza ukuba zigcine ukusebenza okuzinzile ixesha elide phantsi kweempembelelo zendalo ezifana nemisebe ye-ultraviolet kunye nokutshintsha kweqondo lokushisa. Ngokomzekelo, ii-geomembranes ezicutshungulwayo kunye neendlela ezikhethekileyo kunye nobuchule zinokuba nobomi benkonzo ye-30 - 50 iminyaka ngaphandle. - Ukuziqhelanisa noTshintsho:
Idama liya kuba noguquko oluthile olufana nokuhlaliswa kunye nokufuduswa ngexesha lokugcinwa kwamanzi. I-Geomembranes inokuziqhelanisa nokuguqulwa okunjalo ngaphandle kokuqhekeka. Umzekelo, zinokuzolula kwaye zigobe ukuya kuthi ga kwinqanaba elithile kunye nokuhlaliswa komzimba wedama. Amandla abo okuqina anokufikelela ngokubanzi kwi-10 - 30MPa, ebenza bakwazi ukumelana noxinzelelo olubangelwa kukonakala komzimba wedama.
ukuzithoba ngokweemfuno zeprojekthi. Ubukhulu be-geomembrane budla ngokuba yi-0.3mm ukuya kwi-2.0mm.
- Ukunganyibiliki: Qinisekisa ukuba i-geomembrane inokunganyibiliki kakuhle ukuthintela amanzi emhlabeni ukuba angangeni kwiprojekthi.
2.Amanqaku aphambili oKwakha
- Unyango olusisiseko:
Phambi kokubeka i-geomembranes, isiseko sedama kufuneka sibe sicaba kwaye siqine. Izinto ezibukhali, ukhula, umhlaba ovulekileyo kunye namatye kumphezulu wesiseko kufuneka zisuswe. Umzekelo, impazamo ye-flatness yesiseko iyafuneka ngokubanzi ukuba ilawulwe ngaphakathi kwe-±2cm. Oku kunokuthintela i-geomembrane ukuba ikhutshwe kwaye iqinisekise ukudibanisa okulungileyo phakathi kwe-geomembrane kunye nesiseko ukwenzela ukuba i-anti-seepage isebenze. - Indlela yokubeka:
I-Geomembranes idla ngokudityaniswa nge-welding okanye i-bonding. Xa u-welding, kuyimfuneko ukuqinisekisa ukuba ukushisa kwe-welding, isantya kunye noxinzelelo zifanelekile. Umzekelo, kwi-geomembranes ye-welding yobushushu, ubushushu be-welding buphakathi kwe-200 - 300 °C, isantya se-welding simalunga ne-0.2 - 0.5m / min, kwaye uxinzelelo lwe-welding luphakathi kwe-0.1 - 0.3MPa ukuqinisekisa umgangatho wokuwelda kunye nokuthintela. iingxaki zokuvuza ezibangelwa kukuwelda kakubi. - uQhakamshelwano lwePhepha:
Ukudityaniswa kwee-geomembranes kunye nesiseko sedama, iintaba ezikumacala omabini edama, njl njl. kumda wedama kubaluleke kakhulu. Ngokubanzi, imisele ye-ankile, i-concrete capping, njl.njl iya kwamkelwa. Umzekelo, umsele weankile onobunzulu obuyi 30 - 50cm usetwe kwisiseko sedama. Umphetho we-geomembrane ubekwe kumsele wokubambelela kwaye ulungiswe ngezinto zomhlaba ezidibeneyo okanye ikhonkrithi ukuqinisekisa ukuba i-geomembrane idibaniswe ngokuqinileyo kunye nezakhiwo ezijikelezayo kunye nokuthintela ukuvuza kwe-peripheral.
3.ULondolozo kunye noHlolo
- Ugcino Lwesiqhelo:
Kuyimfuneko ukujonga rhoqo ukuba kukho umonakalo, iinyembezi, i-punctures, njl. ebusweni be-geomembrane. Umzekelo, ngexesha lokusebenza kwedama, abasebenzi bolondolozo banokwenza uhlolo kanye ngenyanga, begxininise ekujongeni i-geomembrane kwiindawo apho inqanaba lamanzi litshintsha rhoqo kunye neendawo ezinoguquko olukhulu lwedama. - Iindlela zokuHlola:
Ubuchule bokuvavanya obungonakalisi bunokwamkelwa, njengendlela yovavanyo lwentlantsi. Kule ndlela, i-voltage ethile isetyenziswe kumphezulu we-geomembrane. Xa kukho umonakalo kwi-geomembrane, iintlantsi ziya kuveliswa, ukwenzela ukuba iindawo ezonakalisiweyo zifumaneke ngokukhawuleza. Ukongeza, kukho indlela yokuvavanya ivacuum. Indawo evaliweyo yenziwa phakathi kwe-geomembrane kunye nesixhobo sokuvavanya, kwaye ubukho bokuvuza kwi-geomembrane bugwetywa ngokujonga utshintsho kwi-vacuum degree.
Iiparamitha zemveliso
