I-Geosynthetics ligama eliqhelekileyo lezinto zokwenziwa ezisetyenziswa kubunjineli boluntu. Njengemathiriyeli yobunjineli boluntu, isebenzisa iipholima zokwenziwa (ezifana neeplastiki, iintsinga zekhemikhali, irabha yokwenziwa, njl.njl.) njengemathiriyeli ekrwada ukwenza iindidi ngeendidi zeemveliso, ezibekwe ngaphakathi komhlaba, phezu komhlaba okanye phakathi kwemihlaba eyahlukeneyo. , ukudlala indima yokungangeni kwamanzi kunye ne-anti-seepage, ukuqiniswa, ukukhupha amanzi kunye nokucoca kunye nokubuyiselwa kwezinto eziphilayo.
Amagqabantshintshi echibi leentsalela zezimbiwa
1. I-Hydrology
Idama leentsalela zemigodi yobhedu likwintlambo. Kukho iinduli emantla, entshona nakumacala asezantsi ahlukaniswe kwinkqubo yamanzi ejikelezileyo. Idama leentsalela zezimbiwa linendawo yokufumana amanzi eyi-5km². Kukho amanzi emseleni unyaka wonke, kwaye umpompozo wamanzi mkhulu.
2. Ipografi
Intlambo iqhelekile kumntla-ntshona-mpuma-mpuma, kwaye ijikela kumntla-mpuma kwicandelo leMizokou. Le ntlambo ivulekile, kunye nobubanzi obuyi-100m kunye nobude obumalunga ne-6km. Idama lokuqala lechibi elicetywayo le-tailings liphakathi kwintlambo. I-Topography ye-slope yebhanki ingumnqantsa kunye ne-slope ngokubanzi yi-25-35 °, eyi-tectonic deudation alpine landform.
3. Iimeko zejoloji yobunjineli
Xa uyila isicwangciso esichasene ne-seepage sechibi le-tailings, uphando lwe-geological geological yendawo yokugcina kufuneka luqhutywe kuqala. Iyunithi yolwakhiwo yenze uphando lobunjineli bejoloji kwichibi leentsalela zezimbiwa: akukho ziphene zisebenzayo ezidlula kwindawo yokugcina amanzi; Umhlaba oqinileyo, udidi lwendawo yokwakha luDidi II; amanzi aphantsi komhlaba kwindawo yogcino manzi alawulwa ngamanzi agutyungelwe ngamatye; umaleko wamatye uzinzile, kwaye kukho ummandla wemozulu ongqindilili owomeleleyo osasazwe kwindawo yesiza sedama, unamandla omatshini aphezulu. Kucingelwa ngokubanzi ukuba isiza sendawo yeentsalela zezimbiwa siyindawo ezinzileyo kwaye sikulungele ngokusisiseko ukwakha isitora.
Anti-seepage scheme of echibini le-tailings
1. Ukukhethwa kwezinto ezichasene ne-seepage
Okwangoku, izinto ezenziweyo ezichasene ne-seepage ezisetyenzisiweyo kule projekthi ziyi-geomembrane, i-sodium bentonite ingubo engenamanzi, njl njl. I-sodium bentonite ingubo engenamanzi inobuchwephesha obuvuthiweyo kunye nokusetyenziswa, kwaye yonke indawo yokugcina le projekthi icwangciswe ukuba ibe. ibekwe nge-sodium bentonite ingubo engangeni manzi Ukunganyameki okuthe tye.
2. Isixokelelwano sokukhuphela amanzi aphantsi komhlaba
Emva kokuba umzantsi wedama ucociwe kwaye ucocwe, umaleko wegrabile ongqindilili we-300mm wondlalwa emazantsi echibi njengomaleko wokuhambisa amanzi aphantsi komhlaba, kwaye umsele oyimfama wokuhambisa amanzi usekwe emazantsi edama, kunye nombhobho onemingxuma we-DN500. ibekwe kumngxuma oyimfama njengesona sikhokelo sokuhambisa amanzi. Imijelo eyimfama yokuhambisa amanzi ibekwe ecaleni kwethambeka emazantsi echibi leentsalela zezimbiwa. Kukho imisele emi-3 eyimfama iyonke, kwaye icwangciswe ngasekhohlo, phakathi nasekunene echibini.
3. Inkqubo yokuhambisa amanzi aphantsi komhlaba athambekileyo
Kwiindawo ezigxininisiweyo zamanzi aphantsi komhlaba, inethiwekhi ye-geotechnical drainage edibeneyo ibekwe, kwaye imisele yokukhupha imfucumfucu kunye nemibhobho yesebe ye-drainage ibekwe kwimida yesebe ngalinye kwindawo yokugcina amanzi, edityaniswe kumbhobho oyintloko ophantsi kwendawo yokugcina amanzi.
4. Ukubekwa kwezinto ezichasene ne-seepage
Izinto ezinqamlekileyo ezichasene ne-seepage kwindawo yokugcina i-tailings ithatha i-sodium-based bentonite ingubo engenamanzi. Emazantsi echibi le-tailings, kubekwe umaleko wegrabile wamanzi aphantsi komhlaba. Ukuqwalasela imfuno yokukhusela ingubo ye-sodium bentonite engangeni manzi, umhlaba ocolekileyo oyi-300mm otyebileyo ubekwe kuluhlu lwegrabile njengomaleko okhuselayo phantsi kwenwebu. Kwi-slope, i-composite geotechnical drainage net ibekwe kwezinye iindawo njengoluhlu olukhuselayo phantsi kwengubo ye-sodium-bentonite engenamanzi; kwezinye iindawo, i-500g/m² geotextile isetwe njengomaleko okhuselayo phantsi kwenwebu. Inxalenye yodongwe oluyintlenga kwindawo yokugcina iintsalela zezimbiwa ingasetyenziswa njengomthombo womhlaba ocolekileyo.
Ubume bomaleko ochasene nokuphuma kwamanzi emazantsi echibi leentsalela zezimbiwa ngolu hlobo lulandelayo: iitailings – sodium bentonite blanket waterproof – 300mm umhlaba ocolekileyo-grained – 500g/m² geotextile – umaleko wokuhambisa amanzi aphantsi komhlaba (300mm umaleko wegrabile okanye istratum yendalo enokungena kakuhle. , i-drainage layer Umsele oyimfama) umaleko wesiseko somgangatho.
Ubume bomaleko ochasene nokungena kwamanzi wethambeka lechibi (akukho ndawo inamanzi aphantsi komhlaba): iintsalela zezimbiwa – i-sodium bentonite yefektri yengubo engangeni manzi 500g/m² geotextile – umaleko wesiseko wokulinganisa.
Ubume be-anti-seepage layer kwi-tailings pond slope (enendawo yokuchayeka kwamanzi aphantsi komhlaba): ii-tailings - i-sodium-based bentonite blanket waterproof - i-waterwater drainage layer (6.3mm composite geotechnical drainage grid, i-branched drainage blind ditch) - umgangatho wesiseko somgangatho .
Ixesha lokuposa: Mar-11-2022