Geosynthetics ishoko rakajairika rezvigadzirwa zvekugadzira zvinoshandiswa muinjiniya yehurumende. Sezvinhu zvehuinjiniya, inoshandisa mapolymer ekugadzira (senge mapurasitiki, makemikari fibers, synthetic rubber, nezvimwewo) semidziyo yekugadzira mhando dzakasiyana dzezvigadzirwa, zvinoiswa mukati mevhu, pamusoro kana pakati pevhu rakasiyana. , kuita basa rekudzivirira mvura uye anti-seepage, kusimbisa, kudhiraivha uye kusefa uye kudzoreredza ecological.
Overview of tailings pond
1. Hydrology
Dziva remugodhi wemhangura riri mumupata. Kune mitsetse kuchamhembe, kumadokero uye kumaodzanyemba mativi akaparadzaniswa nehurongwa hwemvura hwakapoteredza. Dziva remachira rine nzvimbo yekubata ye5km². Mugoronga mune mvura gore rose, uye kuyerera kwemvura kwakakura.
2. Topography
Mupata uyu unowanzo kuchamhembe kwakadziva kumadokero-maodzanyemba kwakadziva kumabvazuva, uye unotendeukira kuchamhembe kwakadziva kumabvazuva pachikamu cheMizokou. Mupata wacho wakavhurika, une avhareji yehupamhi hunosvika 100m uye kureba kwe6km. Dhamu rekutanga redziva rakarongwa remachira riri pakati pemupata. Mamiriro epamusoro pemutsetse webhangi ane materu uye materu acho anowanzo 25-35 °, inova tectonic deudation alpine landform.
3. Engineering geological mamiriro
Paunenge uchigadzira chirongwa che-anti-seepage chedziva rekumisa, iyo engineering geological ongororo yenzvimbo yekuchengetedza inofanira kutanga yaitwa. Chikwata chekuvaka chakaita engineering geological ongororo yedhamu retailings: hapana zvikanganiso zvinoshanda zvinopfuura nepakati penzvimbo yekuchengetedza; Ivhu rakaoma, chikamu chenzvimbo yekuvaka iKirasi II; mvura yepasi munzvimbo yedhamu inodzorwa nebedrock weathered fissure mvura; dombo rakadzikama, uye kune nzvimbo yakakora yakasimba yemamiriro ekunze yakagoverwa munzvimbo yedhamu, ine simba remuchina. Inotongwa zvizere kuti nzvimbo yekuisa tailings inzvimbo yakagadzikana uye yakanyatsokodzera kuvaka imba yekuchengetera zvinhu.
Anti-seepage scheme ye tailings dziva
1. Kusarudzwa kwezvinhu zvinopesana nepeji
Parizvino, zvigadzirwa zvekugadzira anti-seepage zvinoshandiswa muprojekiti geomembrane, sodium bentonite isina mvura gumbeze, etc. Iyo sodium bentonite isina mvura gumbeze ine tekinoroji yakakura uye mashandisirwo, uye nzvimbo yese yekuchengetedza purojekiti iyi yakarongwa kuve. akaradzikwa nesodium bentonite gumbeze risingapindi mvura Horizontal impermeability.
2. Reservoir pasi pasi pevhu drainage system
Mushure mekunge pasi pemvura yacheneswa uye nekugadziriswa, 300mm gobvu girawe rakaiswa pasi pechidziva sechitubu chemvura yepasi, uye gomba rakapofumadzwa remvura rinoiswa pazasi pedziva, uye pombi yeDN500 ine perforated. inoradzikwa mugomba remapofu semutungamiri mukuru wemvura. Migero isingapofu yekufambisa mvura inogadzikwa pamateru pazasi pedziva rekumisa. Kune 3 migero yemapofu yakazara, uye yakarongwa kuruboshwe, pakati nekurudyi mudziva.
3. Slope yepasi pemvura drainage system
Munzvimbo yakadzikama yemvura yepasi pevhu, nzvimbo inosanganiswa yegeotechnical drainage network inoiswa, uye mapofu emvura emvura uye mapombi epazi emvura anoiswa mumigero yebazi rimwe nerimwe munzvimbo yekuchengetedza, iyo yakabatana nepombi huru pazasi pechidziva.
4. Anti-seepage zvinhu kuisa
Iyo yakachinjika anti-seepage zvinhu munzvimbo yekumisa reservoir inotora sodium-based bentonite isina mvura gumbeze. Pazasi pedziva remachira, pane matombo emvura yepasi pemvura yakagadzika. Tichifunga nezvekudiwa kwekudzivirira jira re sodium bentonite risingapindi mvura, ivhu rakakobvu 300mm rinoiswa pagravel layer sechidziviriro pasi pe membrane. Pamateru, mambure akabatanidzwa geotechnical drainage mambure akaiswa mune dzimwe nzvimbo sechidziviriro chekudzivirira pasi pe sodium-bentonite mvura isina mvura; mune dzimwe nzvimbo, 500g/m² geotextile inogadzikwa seyekudzivirira pasi pe membrane. Chikamu chevhu rine silt munzvimbo inochengeterwa miswe inogona kushandiswa senzvimbo yevhu rakatsetseka.
Mamiriro eiyo anti-seepage layer pazasi pedziva remachira ndeaya anotevera: miswe - sodium bentonite isina mvura gumbeze - 300mm ivhu rakatsetseka - 500g/m² geotextile - yepasi pemvura dhizaini (300mm gravel layer kana yakasikwa stratum ine yakanaka permeability. , drainage layer Blind ditch) a leveling base layer.
Mamiriro e-anti-seepage layer yematailings pond slope (hapana pasi pevhu inoratidzwa nzvimbo): tailings - sodium bentonite isina mvura yegumbeze fekitori 500g/m² geotextile - inodzika base layer.
Mamiriro e-anti-seepage layer pane tailings pond slope (ine pasi pevhu inotaridzirwa nzvimbo): tailings - sodium-based bentonite waterproof blanket - pasi pemvura drainage layer (6.3mm composite geotechnical drainage grid, branched drainage blind ditch) - leveling base layer .
Nguva yekutumira: Mar-11-2022