Geosynthetics ndi liwu wamba la zinthu zopangira zomwe zimagwiritsidwa ntchito mu engineering Civil. Monga chuma chaumisiri, chimagwiritsa ntchito ma polima opangira (monga mapulasitiki, ulusi wamankhwala, mphira wopangira, etc.) ngati zida zopangira zinthu zamitundu yosiyanasiyana, zomwe zimayikidwa m'nthaka, pamtunda kapena pakati pa dothi losiyanasiyana. , kuti agwire ntchito yoletsa madzi komanso otsutsa-seepage, kulimbikitsa, kukhetsa madzi ndi kusefera ndi kubwezeretsa zachilengedwe.
Chidule cha tailings pond
1. Hydrology
Dziwe la migodi ya mkuwa lili m’chigwa. Pali zitunda kumpoto, kumadzulo ndi kumwera mbali zolekanitsidwa ndi madzi ozungulira. Danga la tailings lili ndi malo okwana 5km². M’ngalandemo mumakhala madzi chaka chonse, ndipo madzi ake amakhala aakulu.
2. Kujambula pazithunzi
Chigwachi nthawi zambiri chimakhala kumpoto chakumadzulo-kum'mwera chakum'mawa, ndipo chimatembenukira kumpoto chakum'mawa kwa gawo la Mizokou. Chigwacho ndi chotseguka, pafupifupi m'lifupi mwake pafupifupi 100m ndi kutalika pafupifupi 6km. Damu loyamba la dziwe lopendekera lopendekera lili pakatikati pa chigwacho. Maonekedwe a malo otsetsereka a banki ndi otsetsereka ndipo otsetsereka nthawi zambiri amakhala 25-35 °, komwe ndi mawonekedwe amtundu wa alpine.
3. Zomangamanga za geological
Popanga ndondomeko yotsutsana ndi dziwe la dziwe la tailings, kafukufuku wa geological geological wa malo osungiramo madzi ayenera kuchitidwa poyamba. Ntchito yomangayi yachita kafukufuku wa geological wa dziwe la tailings: palibe zolakwika zomwe zimadutsa m'malo osungiramo madzi; Dothi lolimba, gulu la malo omanga ndi Gulu II; madzi apansi panthaka m'malo osungiramo madzi amadzaza ndi madzi am'mphepete; wosanjikiza thanthwe ndi khola, ndipo pali wandiweyani wamphamvu nyengo zone anagawira m'dera Damu malo, ndi mkulu mawotchi mphamvu. Zimaganiziridwa momveka bwino kuti malo opangira tailings ndi malo okhazikika ndipo ndi oyenera kumanga nyumba yosungiramo zinthu.
Anti-seepage scheme of tailings dziwe
1. Kusankhidwa kwa zinthu zotsutsana ndi tsamba
Pakalipano, zipangizo zotsutsana ndi zowonongeka zomwe zimagwiritsidwa ntchito mu polojekitiyi ndi geomembrane, bulangeti lopanda madzi la sodium bentonite, ndi zina zotero. Chofunda chopanda madzi cha sodium bentonite chili ndi luso lamakono ndi ntchito, ndipo malo onse osungiramo pulojekitiyi akukonzekera kukhala. anayala ndi sodium bentonite madzi bulangeti Chopingasa impermeability.
2. Posungira pansi pa madzi ngalande dongosolo
Pambuyo potsukidwa ndikuthiridwa pansi pamadzi, 300mm wandiweyani miyala wosanjikiza imayikidwa pansi pa dziwe ngati madzi apansi panthaka, ndipo dzenje lakhungu la ngalande limayikidwa pansi pa dziwe, ndi chitoliro cha DN500. imayikidwa mu dzenje lakhungu ngati kalozera wamkulu wa ngalande. Mphepete mwa thawelo pansi pa dziwe la ma tailings ma ngalande akhungu a ngalande za kalozera. Pali ngalande zakhungu 3 zonse, ndipo zakonzedwa kumanzere, pakati ndi kumanja mu dziwe.
3. Madzi otsetsereka apansi panthaka
M'dera lokhazikika lamadzi apansi panthaka, ma network ophatikizika a geotechnical drainage amayikidwa, ndipo ngalande zakhungu ndi mipope ya nthambi za ngalande zimayikidwa mu ngalande zanthambi iliyonse m'dera losungiramo madzi, lomwe limalumikizidwa ndi chitoliro chachikulu pansi pa nkhokwe.
4. Anti-seepage zinthu atayala
Zopingasa zopingasa zamasamba zomwe zili m'malo osungiramo ma tailings zimatengera bulangeti lopanda madzi la bentonite lokhala ndi sodium. Pansi pa dziwe la ma tailings, madzi apansi a miyala amayikidwa. Poganizira kufunikira koteteza bulangeti lopanda madzi la sodium bentonite, dothi lopaka bwino la 300mm limayikidwa pamiyala ngati gawo loteteza pansi pa nembanemba. Pamalo otsetsereka, ukonde wophatikizika wa geotechnical drainage umayikidwa m'malo ena ngati gawo loteteza pansi pa bulangeti lopanda madzi la sodium-bentonite; m'madera ena, geotextile 500g/m² amaikidwa ngati wosanjikiza zoteteza pansi nembanemba. Mbali ina ya dongo la dongo lomwe lili m'malo osungiramo tailings lingagwiritsidwe ntchito ngati magwero a nthaka yabwino.
Kapangidwe ka anti-seepage wosanjikiza pansi pa dziwe tailings ndi motere: tailings - sodium bentonite madzi bulangeti - 300mm dothi labwino-grained - 500g/m² geotextile - pansi ngalande wosanjikiza (300mm miyala wosanjikiza kapena stratum zachilengedwe ndi permeability bwino , drainage layer Blind ditch) malo okhazikika.
Mapangidwe a anti-seepage wosanjikiza wa tailings dziwe otsetsereka (palibe malo okhudzana ndi madzi apansi): tailings - sodium bentonite bulangeti bulangeti fakitale 500g/m² geotextile - leveling base layer.
Mapangidwe a anti-seepage wosanjikiza pa tailings dziwe otsetsereka (ndi pansi pa nthaka kukhudzana ndi madzi): tailings - sodium-based bentonite madzi bulangeti - pansi madzi ngalande wosanjikiza (6.3mm composite geotechnical drainage grid, nthambi ngalande akhungu dzenje) - kusanja maziko.
Nthawi yotumiza: Mar-11-2022