Ububanzi bokubeka i-geomembrane eyinhlanganisela
Ukusebenza kwempilo yokusebenza kwe-geomembrane eyinhlanganisela kunqunywa ngokuyinhloko ukuthi ingabe ifilimu yepulasitiki ingaphansi kokwelashwa okuxosha amanzi. Ngokwezindinganiso zikazwelonke zeSoviet Union, ifilimu ye-polyethylene enobukhulu obungu-0.2m kanye ne-stabilizer yobunjiniyela be-hydraulic ingasebenza iminyaka engu-40 kuya kwengu-50 ngaphansi kwezimo zamanzi ahlanzekile kanye neminyaka engama-30 kuya kwengu-40 ngaphansi kwezimo zendle. Idamu laseZhoutou Reservoir ekuqaleni laliyidamu eliwudonga oluwumgogodla, kodwa ngenxa yokuwa kwedamu, ingxenye engaphezulu yodonga oluwumgogodla yasuswa. Ukuze uphathe ukusebenza kwe-anti-seepage ephezulu, udonga oluthambekele oluphikisana nekhasi lwengezwe esisekelweni. Ngokuvumelana nokuboniswa kokuphepha kanye nokubola kwedamu le-Zhoutou Reservoir, ukuze kubhekwane nokuvuza okubuthakathaka kwendawo kanye nokuvuza kwesisekelo sedamu okubangelwa ukudilika kwenhlabathi okuphindaphindiwe kwedamu, izakhiwo ezingenakunyakaziswa njenge-bedrock curtain grouting, i-grouting surface yempi, ukushaywa kwamanzi kanye ikhethini elibamba kahle eligcwalisa i-backfilling, kanye nodonga lwepuleti lepuleti le-jet elinengcindezi ephezulu lamukelwe ngokwemibandela ukuvimbela ukugeleza kwamanzi okuqondile.
Izici ze-geomembrane eyinhlanganisela: I-geomembrane eyinhlanganisela iyimpahla ye-geomembrane eyakhiwe ngefilimu yepulasitiki njenge-anti-seepage substrate nendwangu engalukiwe. Umsebenzi wayo wokunqanda ukuvuleka uncike ekusebenzeni kwe-anti-seepage yefilimu yepulasitiki. Indlela yayo yokuqina iwukuthi ukungagxili kwefilimu yepulasitiki kuvimbela ukuvuza kwedamu lomhlaba emanzini, ukumelana nomfutho wamanzi nokujwayela ukuguquguquka kwedamu ngenxa yamandla alo amakhulu okudonsa kanye nezinga lokulibaziseka; Indwangu engalukiwe iphinde ibe yikhemikhali yemicu ye-polymer emifushane, eyakhiwe ngokubhobozwa kwezinaliti noma ngokuhlangana okushisayo, futhi inamandla aphezulu nokubambezeleka. Ngemuva kokuthintwa namafilimu epulasitiki, akukhulisi nje kuphela amandla aqinile nokumelana nokubhoboza kwamafilimu epulasitiki, kodwa futhi kwandisa i-coefficient yokungqubuzana kwendawo yempi ngenxa yemininingwane eqinile yezindwangu ezingalukiwe, okuzuzisa ukuzinza kwama-geomembranes ayinhlanganisela. kanye nezingqimba zokucasha.
Ngakho-ke, impilo yokusebenza ye-geomembrane eyinhlanganisela yanele ukwanelisa impilo yokusebenza eceliwe ukuze kuvinjelwe ukugeleza kwedamu.
Udonga oluphezulu lumbozwe nge-geomembrane eyinhlanganisela yokuvimbela ukugeleza kwamanzi, ingxenye engezansi ilandela udonga lokuvimbela ukugeleza kwamanzi kanye nengxenye engaphezulu ifinyelela ukuphakama okungama-358.0m (0.97m ngaphezu kwezinga lesheke lezikhukhula).
Ukumelana nokushisa okuphezulu, ukusebenza okuhle kwe-antifreeze.
Njengamanje, amafilimu epulasitiki asetshenziselwa ukulawulwa kwe-seepage ekhaya nakwamanye amazwe ahlanganisa i-polyvinyl chloride (PVC) ne-polyethylene (PE), okuyizinto eziguquguqukayo zamakhemikhali e-polymer ezinesisindo esincane, ukubambezeleka okuqinile, nokuguquguquka okuphezulu kokuguquguquka.
Ngesikhathi esifanayo, banokumelana kahle namagciwane kanye nokuzwela kwamakhemikhali, futhi abesabi i-asidi, i-alkali, nokugqwala kukasawoti.
Isikhathi sokuthumela: Mar-24-2023