Imitapo yobunjiniyela banamuhla yezakhiwo kanye nezemvelo incike kakhulu ezinhlelweni zokuvalela eziqinile ukuze ivikele amanzi angaphansi komhlaba, inhlabathi, nomoya ekungcoleni. Ama-geomembrane asebonakala eyinto eyinhloko yokuvimbela kulezi zinhlelo, enikeza ukungangeni kwamanzi okukhethekile kanye nokuqina kwesikhathi eside ezinhlobonhlobo zezinhlelo zokusebenza. Kusukela ezindaweni zokulahla imfucuza kanye nemisebenzi yezimayini kuya emachibini okufuya izinhlanzi kanye nokuvikela amanzi emhubheni, lawa ma-membrane okwenziwa ahlinzeka ngokusebenza okuthembekile lapho izithiyo zemvelo zehluleka khona. Ukugcizelela okukhulayo emhlabeni wonke ekuvikeleni imvelo kanye nezinqubo zokulawula eziqinile kuqhubeka kugcizelela ukubaluleka kwezixazululo ze-geomembrane ezisezingeni eliphezulu. Njengoba imisebenzi yengqalasizinda iba yinkimbinkimbi futhi izwela imvelo, isidingo sezinto zokufulela ezithuthukile siyaqhubeka sikhula. Ukuqonda izinhlobo, imisebenzi, nokukhethwa okufanele kwama-geomembrane kubalulekile konjiniyela, osonkontileka, nabanikazi bamaphrojekthi abahlose ukufeza kokubili ukuthobela imithetho kanye nokusebenza kahle. Lo mhlahlandlela obanzi uhlola umhlaba wama-geomembrane, ugxile kakhulu emikhiqizweni emisha enikezwa yiGeofantex Geosynthetics, umkhiqizi ohamba phambili wama-geomembrane ozinikele ekhwalithini nasekusebenzeni kahle.

Ama-geomembrane aqhamuka ngezinhlobonhlobo zokwakheka kwepholima, ngalinye lakhelwe ukuhlangabezana nezidingo ezithile zokusebenza mayelana nokumelana namakhemikhali, ukuguquguquka, ukuzinza kwe-UV, nezici zokufakwa. I-high-density polyethylene (HDPE) iyona into esetshenziswa kakhulu ngenxa yokumelana kwayo namakhemikhali okuhle kakhulu, ukungena kwayo okuphansi, namandla amakhulu okudonsa, okwenza kube ukukhethwa okuncamelayo kuma-landfill liners kanye nezinhlelo zokuqukethwe kwezimayini. I-low-density polyethylene (LLDPE) inikeza ukuguquguquka okukhulu nokwelula kune-HDPE, okusiza ukumelana nokuhlala okungalingani kanye nezimo zomhlaba ezingajwayelekile ngaphandle kokuqhekeka. Ama-PVC geomembrane aziwa ngokuguquguquka kwawo okuphezulu nokufakwa kalula, avame ukucaciselwa amaphrojekthi okuqukethwe kwamanzi njengamachibi, imisele, nezici zokuhlobisa zamanzi. Ezinye izinto zihlanganisa i-polypropylene (PP), enikeza ukumelana namakhemikhali okuhle nokushisela okushisayo, kanye ne-ethylene propylene diene monomer (EPDM), ebalulekile ngenxa yokunwebeka kwayo nokumelana nesimo sezulu ezinhlelweni eziveziwe. Ngaphezu kwalezi zinketho ezijwayelekile, onjiniyela bavame ukucacisa i-composite geomembrane ehlanganisa i-geomembrane nongqimba lwe-geotextile ukuze kuthuthukiswe ukumelana nokubhoboza nezici zokukhipha amanzi. I-textured geomembrane ingenye inhlobo ekhethekile, enobuso obunamagquma ohlangothini olulodwa noma zombili ukuze kwandiswe ukungqubuzana kwe-interface nomhlabathi noma ama-geotextiles, kuthuthukiswe ukuzinza emithambekeni. Ukukhetha ipholima efanele nokuqedwa kobuso isinqumo esibucayi esinomthelela oqondile ekusebenzeni kwesikhathi eside nempilo yohlelo lokuqukethwe.

Ama-geomembrane asebenza imisebenzi eminingi ngesikhathi esisodwa, okwenza abe ngezinye zezinto eziguquguquka kakhulu kwezobunjiniyela bomhlaba kanye nezemvelo. Umsebenzi wabo oyinhloko ukuqukatha — ukuvimbela ukuhamba koketshezi, amanzi angcolile, noma amakhemikhali ayingozi ukuba angene emhlabathini ozungezile nasekuphepheni kwamanzi angaphansi komhlaba, okubalulekile ekuvikeleni imvelo nempilo yomphakathi. Izinhlelo zokufaka ulwelwesi zisebenzisa ama-geomembrane njengezithiyo ezingangenwa amanzi emadamu, emachibini, emisele yokunisela, nasezakhiweni zokuqukatha ezesekelayo ukulawula ukulahleka kwamanzi nokuvimbela ukungcola. Ukuvimbela amanzi kungenye imisebenzi eyinhloko, ikakhulukazi ezinhlakeni ezingaphansi komhlaba njengemigudu, amakamelo angaphansi, nezisekelo, lapho ama-geomembrane evimba khona ingcindezi yamanzi futhi egcina izindawo zangaphakathi zomile. Umsebenzi wokuvimbela igesi ubalulekile ezindaweni zokulahla imfucuza, lapho imfucuza ebolile ephilayo ikhiqiza i-methane namanye amagesi okufanele aqukathwe ukuvimbela izingozi zokuqhuma nokunciphisa ukukhishwa kwamagesi abamba ukushisa. Izinhlelo eziningi zanamuhla zokumboza izindawo zokulahla imfucuza zifaka ungqimba lokuthola igesi ngaphansi kwesembozo se-geomembrane ukuze kuthathwe i-methane ukuze kutholakale amandla. Ngaphandle kwale misebenzi eyinhloko, ama-geomembrane nawo anomthelela ekulawuleni ukuguguleka komhlabathi lapho esetshenziswa njengezembozo ezivikelayo emithambekeni nasezindongeni zomgwaqo. Ahlinzeka ngongqimba oluzinzile lokuhlukanisa phakathi kwezinhlobo ezahlukene zomhlabathi, evimbela ukuxubana okungabeka engcupheni ukuqina kwesakhiwo. Ukukhethwa kohlobo oluthile lwe-geomembrane nokujiya kwalo kuncike emsebenzini oyinhloko odingekayo, izimo zokuchayeka, kanye nengcindezi yemishini elindelekile phakathi nesikhathi sokusebenza.

I-GEOFANTEX Geosynthetics isungule ukuthi ingumkhiqizi we-geomembrane othembekile ngohlu olubanzi lwezixazululo zokufaka ulwelwesi olusebenza kahle kakhulu oluklanyelwe ukuhlangabezana nezinselelo ezinzima zobunjiniyela. I-HDPE Geomembrane ikhiqizwa nge-virgin polyethylene resin futhi ihambisana namazinga omhlaba afana ne-GRI GM13, iqinisekisa ubukhulu obungaguquki, izakhiwo zokwelula, nokumelana nokuqhekeka kwengcindezi ukuze ihlale isimeme isikhathi eside ezindaweni ezinzima. Ezinhlelweni ezidinga ukuguquguquka okukhulu, i-I-LLDPE Geomembraneoluvela ku-Geofantex lunikeza ukwelula okuphezulu nokuvumelana, okwenza kufaneleke kahle ezindaweni ezingalingani kanye nezindawo ezithambekele ekuhlalisweni okwehlukile. Inkampani futhi ikhiqiza ama-geomembrane anokuthungwa anamaphethini angaphezulu ahlanganisiwe athuthukisa kakhulu ukungqubuzana kwendawo, anciphise izingozi zokushibilika emithambekeni emide emaphrojekthi okulahla imfucuza kanye namachibi. I-i-geomembrane eyinhlanganiselainketho itholakala kumaphrojekthi adinga ukusebenza okuhlanganisiwe kokuvimbela nokukhipha amanzi, kuhlanganiswe i-geomembrane nongqimba lwe-nonwoven geotextile ukuze kwengezwe ukumelana nokubhoboza kanye nokuthuthukisa ukusebenza kwamanzi. I-Gefantex iqinisekisa ukulawulwa kwekhwalithi okuqinile kuzo zonke izigaba zokukhiqiza, kusukela ekuhlolweni kwezinto ezingavuthiwe kuya ekuhlolweni kwe-roll eqediwe, namalabhorethri angaphakathi aqinisekisa izici ezibalulekile njengobuningi, i-melt flow index, nokusabalalisa kwe-carbon black. Amaroli e-geomembrane abo atholakala ngobubanzi nobukhulu obuhlukahlukene (ngokuvamile 0.5 mm kuya ku-3.0 mm), okuvumela ukwenziwa ngendlela oyifisayo ukuze kuhambisane nezidingo zendawo zokulayisha nokufaka. Ngokuhlanganisa ubuchwepheshe obuthuthukile be-extrusion nokunamathela okuqinile ezindinganisweni zomhlaba, i-Gefantex iletha ama-geomembrane anikeza ukusebenza okuthembekile kwesikhathi eside, izidingo ezincishisiwe zokunakekela, kanye nenani elihle kakhulu kumjikelezo wokuphila kwephrojekthi.

Ama-geomembrane asetshenziswa emikhakheni ehlukahlukene kakhulu, ngamunye wazo unezimfuneko zokusebenza ezihlukile kanye nomongo wemithetho. Emkhakheni wokulawula imfucuza, izinhlelo ze-landfill liner ngokuvamile zihlanganisa izingqimba eziningi ze-geomembrane, ama-clay liner, nama-geotextile ukuvimbela i-leachate ukuthi ingangcolisi amanzi angaphansi komhlaba. I-Geofantex ihlinzeka ngezixazululo ezenziwe ngokwezidingo Landfill ezihlanganisa ama-bottom liner, izinhlelo zokumboza, kanye nokuvikelwa kwemithambeka eseceleni, ngokuvamile kusetshenziswa i-HDPE geomembrane enokuthungwa ukuze kuthuthukiswe ukuzinza ezindaweni ezingama-slope. Imisebenzi yezimayini incike kuma-geomembrane kuma-heap leach pad, izindawo zokugcina i-tailings, namachibi ezixazululo zokucubungula, lapho ukumelana namakhemikhali nokuqina kwemishini kubaluleke kakhulu. I-Miningizixazululo ezivela kuGeofantex zakhelwe ukumelana nezixazululo ezinamandla zokuncibilikisa kanye nemithwalo enzima yemishini, ziqinisekisa ukuvinjelwa okuphephile koketshezi lwenqubo futhi zivimbela izehlakalo ezibizayo zemvelo. Izinhlelo zezolimo nezokulima ezasemanzini zisebenzisa ama-geomembrane ukufulela amachibi okunisela, amapulazi ezinhlanzi, kanye namadamu okugcina amanzi, kunciphisa ukulahleka kokuvuza futhi kugcine ikhwalithi yamanzi izitshalo nemfuyo. Imisebenzi yemigudu nezokwakha ngaphansi komhlaba idinga ama-geomembrane ukuze avikele unomphela emanzini, lapho afakwa khona phakathi kwe-shotcrete nokwakheka kokugcina kukakhonkolo ukuvimbela ukungena kwamanzi angaphansi komhlaba. Ama-geomembrane nawo adlala indima ebalulekile ezitshalweni zokuhlanza amanzi angcolile, ukuvinjelwa kwesibili ezindaweni ezizungeze amathangi kaphethiloli, kanye nezici zokuhlobisa zezwe ezifana namachibi okwenziwa nezindawo zokudlala igalofu ezinamanzi. Ukuguquguquka kwezinhlelo zanamuhla zama-geomembrane kusho ukuthi onjiniyela bangaklama izixazululo zokuqukethwe ezenziwe ngokwezifiso kunoma iyiphi inselelo yokuphatha uketshezi, igesi, noma okuqinile.

Ukusebenza kwesikhathi eside kwanoma yiluphi uhlelo lwe-geomembrane kuncike kakhulu ezenzweni ezifanele zokufaka kanye nokunakekelwa okuqhubekayo. Ngaphambi kokufakwa, indawo engaphansi kufanele ilungiswe ukuze kususwe amatshe abukhali, izimpande, noma imfucumfucu engabhidliza ulwelwesi, futhi ungqimba lwe-Ama-Nonwoven Geotextilesivame ukubekwa njengesihlalo ukuze kunikezwe ukuvikelwa okwengeziwe ekubhobhozeni. Ukuhlelwa kwephaneli kufanele kuhlelwe ukuze kuncishiswe imisebe yensimu futhi kuhlangabezane ne-geometry yendawo, ngokugqagqana okwanele ukuze kuvunyelwe ukunwebeka nokufinyela kokushisa. Ukushisela kuyindlela eyinhloko yokuhlanganisa amashidi e-geomembrane, ngokushisela nge-wedge eshisayo nokushisela nge-extrusion kuyizindlela ezivame kakhulu; yonke imithungo kufanele ihlolwe ukuqhubeka kwayo kusetshenziswa izindlela ezifana nokuhlola ngomoya, ukuhlola nge-vacuum, noma ukuhlola nge-spark ukuze kuqinisekiswe ukuthi kukhona ukubopha okungangeni manzi. Imisele yokubambelela nezinhlelo ze-ballast ziyadingeka ezizungeze umjikelezo wezindawo ezinweleziwe nasemithambekeni ukuze kuvikelwe ukuphakanyiswa komoya nokugudluzwa kwemishini. Ngesikhathi sokusebenza kokufakwa kwe-geomembrane, ukuhlolwa okuvamile ngamehlo kufanele kwenziwe ukuze kutholakale izimpawu zomonakalo, ukushwabana, noma ukwehlukana kwemithungo, ikakhulukazi ngemva kwemvula enkulu, ukuzamazama komhlaba, noma umsebenzi wokwakha oseduze. Uma kutholakala izimbobo ezincane noma izikwele, ukulungiswa ngokushesha kusetshenziswa isiqeshana sezinto ezihambisanayo ze-geomembrane nokushisela ngomoya oshisayo kungabuyisela ubuqotho ngaphambi kokuba umonakalo ukhule. Izendlalelo zokuvikela ezifana nomhlabathi, ukhonkolo, noma ama-geotextiles engeziwe zinganweba kakhulu impilo yesevisi ye-geomembrane ngokuyivikela emisebeni ye-UV, ukuguguleka kwemishini, nokucekelwa phansi. Uhlelo lokunakekela oluhleliwe olubhala phansi imiphumela yokuhlola, izenzo zokulungisa, nokudatha yokuqapha lusiza abanikazi ukuthi bathobele izimvume zemvelo futhi bathuthukise imbuyiselo ekutshalweni kwabo kokuqukethwe.

Ukukhetha i-geomembrane efanele yephrojekthi ethile kudinga ukuhlolwa okuphelele kwemithwalo yemishini, ukuchayeka kumakhemikhali, izimo zokufaka, kanye namazinga okulawula. Ama-geomembrane atholakala ezinhlotsheni eziningi zepholima, ubukhulu, nokupheliswa kwendawo, ngalinye linikeza izinzuzo ezihlukile ngokuya ngohlelo lokusebenza — kusukela ekuqineni nasekumelaneni namakhemikhali kwe-HDPE, ekuguquguqukeni kwe-LLDPE, kanye nokulula kokuhlanganiswa okunikezwa yi-PVC. I-geomembrane eyinhlanganisela ingaba yisixazululo esifanele uma kudingeka ukusebenza okuhlanganisiwe kokukhipha amanzi nokuvimbela, kuyilapho i-geomembrane enokuthungwa ibalulekile ekuqineni kwemithambeka kuma-landfill nama-reservoir liners. Ukusebenza nomkhiqizi we-geomembrane onolwazi njenge-Geofantex Geosynthetics kunikeza ukufinyelela ekusekelweni kobuchwepheshe, izinketho zokwenza ngokwezifiso, kanye nemikhiqizo ehlangabezana namazinga aqinile ekhwalithi afana ne-GRI GM13. Ukuhlela okufanele, ukufaka okunobungcweti, nokunakekelwa okuqhubekayo kubalulekile ngokufanayo ukuze kutholakale impilo yonke namandla okuvikela imvelo ohlelweni lwe-geomembrane olukhethiwe. Ngokutshala imali ezintweni ezisezingeni eliphezulu nasezinqubweni zobunjiniyela ezinolwazi, amaqembu ephrojekthi angazuza ukuvinjelwa okuthembekile, agweme ukwehluleka okubizayo, futhi abe nesandla ekwakheni ingqalasizinda ephephile neqhubekayo. Noma ngabe uhlelo luwukulahla imfucuza, indawo yezimayini, indawo yokugcina amanzi, noma umhubhe, isixazululo esifanele se-geomembrane siyisisekelo sokuphatha imvelo ngokuzibophezela.