Amanetha okudonsa amanzi ahlanganisiwe ayizinto ezivame ukusetshenziswa ezindaweni zokulahla udoti, emigwaqweni, ezindongeni zangaphakathi zemihubhe kanye neminye imisebenzi. Ngakho-ke, yiziphi izingxenye zamanetha okudonsa amanzi ahlanganisiwe?
Inethi yokukhipha amanzi ehlanganisiwe yakhiwe ngesisekelo se-mesh yepulasitiki enezinhlangothi ezintathu kanye ne-geotextile embozwe kabili enamathelayo. Le nhlanganisela ayigcini nje ngokunikeza inethi yokukhipha amanzi ehlanganisiwe amandla okukhipha amanzi aqinile, kodwa futhi iyenza ibe nezinzuzo zamandla aphezulu okudonseka, ukumelana nokugqwala kanye nokuphila isikhathi eside.
1. Ingqalasizinda ye-mesh yepulasitiki iyisici esiyinhloko senethi yokudonsa amanzi ehlanganisiwe. Yenziwe nge-polyethylene ephezulu (i-HDPE) futhi icutshungulwa ngenqubo ekhethekile yokubumba i-extrusion. Le ngqalasizinda ye-mesh inesakhiwo esikhethekile esinezingqimba ezintathu. Izimbambo eziphakathi ziqinile futhi zihlelwe ngobude ukuze zenze isiteshi sokudonsa amanzi; izimbambo ezihlelwe ngokunqamula phezulu naphansi zakha ukwesekwa ukuvimbela i-geotextile ukuthi ingangeniswa emgudwini wokudonsa amanzi. Ngisho nangaphansi kwemithwalo ephezulu kakhulu, ingqalasizinda ye-mesh yepulasitiki ingagcina ukusebenza okuphezulu kokudonsa amanzi. Amandla okudonseka okude nokuphambene kanye namandla okucindezela engqalasizinda ye-mesh yepulasitiki kuphakeme kakhulu, okungaqinisekisa ukuzinza nokuthembeka kwenethi yokudonsa amanzi ehlanganisiwe ngesikhathi sokusetshenziswa kwesikhathi eside.
2. I-geotextile evulekayo ingenye ingxenye ebalulekile yenethi yokukhipha amanzi ehlanganisiwe. Ngokuvamile isebenzisa izinto ezifana nendwangu ye-polyester filament, indwangu ye-polyester staple fiber noma indwangu ye-polypropylene staple fiber. Umsebenzi oyinhloko we-geotextile ukuhlunga ukungcola, ukuqinisekisa ukudlula okubushelelezi kwe-core yenethi, nokukhipha amanzi ngesikhathi. I-Geotextile ingahlanganiswa kahle ne-core yenethi yepulasitiki ukuze kwakhiwe isakhiwo sokukhipha amanzi esihlanganisiwe, esingathuthukisa ukusebenza kokukhipha amanzi kanye nokuphila kwenkonzo yenethi yokukhipha amanzi ehlanganisiwe.
3. Ngaphezu kwezingxenye ezimbili eziyinhloko ezingenhla, inethi yokukhipha amanzi ehlanganisiwe ingenziwa ngokwezifiso ngokwezidingo zamakhasimende ngesikhathi senqubo yokukhiqiza. Isibonelo, i-geotextile ehlanganiswe nhlangothi zombili ingaba indwangu yefilamenti, indwangu yefilamenti emfushane, indwangu eluhlaza noma indwangu emnyama. Lokhu kuguquguquka kuvumela inethi yokukhipha amanzi ehlanganisiwe ukuthi izivumelanise kangcono nezidingo zamaphrojekthi ahlukene futhi ithuthukise ukusebenza okuphelele kanye nezinzuzo zephrojekthi.
Inethi yokukhipha amanzi ehlanganisiwe ingasetshenziswa emikhakheni eminingi njengezindawo zokulahla udoti, imibhede yemigwaqo, kanye nezindonga zangaphakathi zemihubhe. Ayikwazi nje kuphela ukukhipha amanzi aqongelelwe phakathi kwesisekelo kanye nesisekelo esingaphansi komhlaba, ivimbe amanzi e-capillary, kodwa futhi ithuthukise amandla okusekela isisekelo futhi yandise impilo yenkonzo yomgwaqo. Ngaphezu kwalokho, inezinzuzo zokwakha okulula, isikhathi sokwakha esifushane kanye nezindleko ezincishisiwe.
Njengoba kungabonakala ngenhla, inetha lokukhipha amanzi elihlanganisiwe lakhiwe yizingxenye ezimbili: umongo we-mesh yepulasitiki onezinhlangothi ezintathu kanye ne-geotextile evulekayo enezinhlangothi ezimbili. Ngakho-ke, ukusebenza kwayo kokukhipha amanzi kuhle kakhulu futhi ingasetshenziswa kumaphrojekthi amakhulu.
Isikhathi sokuthunyelwe: Julayi-17-2025
