Geosynthetics yog ib lo lus dav dav rau cov khoom siv hluavtaws siv hauv engineering engineering. Raws li cov khoom siv engineering, nws siv cov khoom siv hluavtaws (xws li plastics, chemical fibers, hluavtaws roj hmab, thiab lwm yam) ua cov khoom siv raw los ua ntau hom khoom, uas tau muab tso rau hauv cov av, ntawm qhov chaw lossis ntawm ntau cov av. , ua si lub luag hauj lwm ntawm waterproof thiab anti-seepage, reinforcement, kua thiab filtration thiab ecological restoration.
Txheej txheem cej luam ntawm tailings pas dej
1. Hydrology
Lub pas dej tooj liab tailings yog nyob rau hauv ib lub hav. Muaj cov ridges nyob rau sab qaum teb, sab hnub poob thiab sab qab teb sib cais los ntawm cov dej nyob ib puag ncig. Lub pas dej tailings muaj thaj tsam ntawm 5 km². Muaj dej hauv kwj deg txhua xyoo puag ncig, thiab dej ntws loj.
2. Topography
Lub hav feem ntau yog qaum teb-sab hnub poob-sab hnub tuaj, thiab tig mus rau sab qaum teb sab hnub tuaj ntawm ntu Mizokou. Lub hav kuj qhib, nrog qhov dav dav txog 100m thiab ntev li ntawm 6 km. Thawj lub pas dej tauv ntawm lub pas dej tailings yog nyob rau hauv nruab nrab ntawm lub hav. Qhov saum toj kawg nkaus ntawm lub txhab nyiaj txoj kab nqes yog ntxhab thiab txoj kab nqes feem ntau yog 25-35 °, uas yog tectonic denudation alpine landform.
3. Engineering geological tej yam kev mob
Thaum tsim cov phiaj xwm tiv thaiv dej rau lub pas dej tailings, engineering geological kev soj ntsuam ntawm thaj chaw reservoir yuav tsum tau ua ua ntej. Chav tsev tsim kho tau ua tiav engineering geological kev soj ntsuam ntawm lub pas dej tailings: tsis muaj kev ua txhaum cai dhau los ntawm cheeb tsam reservoir; Cov av tawv, qhov chaw tsim kho yog Class II; cov dej hauv av hauv cheeb tsam reservoir yog dominated los ntawm bedrock weathered fissure dej; lub pob zeb txheej yog ruaj khov, thiab muaj ib tug tuab muaj zog weathering zones faib nyob rau hauv lub pas dej ua ke cheeb tsam cheeb tsam, muaj zog mechanical zog. Nws raug txiav txim siab tias qhov chaw tailings chaw yog qhov chaw ruaj khov thiab yog qhov tsim nyog rau kev tsim lub tsev rau khoom.
Anti-seepage tswvyim ntawm tailings pas dej
1. Kev xaiv cov khoom siv los tiv thaiv dej
Tam sim no, cov khoom siv los tiv thaiv cov dej tsis zoo siv hauv qhov project yog geomembrane, sodium bentonite waterproof pam, thiab lwm yam. Lub sodium bentonite waterproof pam muaj ib tug kuj paub tab technology thiab daim ntawv thov, thiab tag nrho cov reservoir cheeb tsam ntawm qhov project no yog npaj los ua. pw nrog sodium bentonite waterproof pam Kab rov tav impermeability.
2. Reservoir hauv qab cov dej ntws hauv av
Tom qab lub hauv qab ntawm lub reservoir yog ntxuav thiab kho, ib tug 300 hli tuab gravel txheej yog muab tso rau hauv qab ntawm lub reservoir raws li ib tug txheej ntawm cov dej hauv av, thiab ib tug dig muag ditch rau ntws yog teem rau hauv qab ntawm lub reservoir, thiab ib tug DN500 perforated yeeb nkab. yog nteg nyob rau hauv lub qhov muag tsis pom ditch ua lub ntsiab lus qhia rau cov kua. Cov qhov muag tsis pom kev rau kev taw qhia cov kua dej yog teeb tsa raws txoj kab nqes hauv qab ntawm lub pas dej tailings. Tag nrho muaj 3 qhov muag tsis pom kev, thiab lawv tau teem rau sab laug, nruab nrab thiab sab xis hauv lub pas dej.
3. Txoj kab nqes hauv av dej ntws
Nyob rau hauv cov cheeb tsam hauv av concentrated seepage, ib tug composite geotechnical drainage network yog nteg, thiab qhov muag tsis pom kwj dej thiab cov kav dej ceg yog teem nyob rau hauv txhua ceg ditches nyob rau hauv lub reservoir cheeb tsam, uas yog txuas nrog lub ntsiab yeeb nkab nyob rau hauv qab ntawm lub reservoir.
4. Anti-seepage cov ntaub ntawv tso
Kab rov tav los tiv thaiv cov khoom siv hauv thaj chaw tailings reservoir txais sodium-based bentonite waterproof pam. Nyob rau hauv qab ntawm lub pas dej tailings, gravel av av txheej txheej yog teem. Xav txog qhov xav tau los tiv thaiv sodium bentonite waterproof pam, 300mm tuab zoo-grained av yog nteg rau ntawm gravel txheej raws li ib tug tiv thaiv txheej nyob rau hauv daim nyias nyias. Nyob rau ntawm txoj kab nqes, ib qho kev sib xyaw geotechnical drainage net yog teem rau hauv qee qhov chaw raws li cov txheej txheem tiv thaiv nyob rau hauv daim pam sodium-bentonite waterproof; Hauv lwm qhov chaw, 500g / m² geotextile tau teeb tsa raws li cov txheej txheem tiv thaiv hauv qab daim nyias nyias. Ib feem ntawm silty av nplaum nyob rau hauv tailings reservoir cheeb tsam yuav siv tau raws li qhov chaw ntawm nplua-grained av.
Cov qauv ntawm cov txheej txheem tiv thaiv hauv qab ntawm lub pas dej tailings yog raws li hauv qab no: tailings - sodium bentonite waterproof pam - 300mm nplua-grained av - 500g / m² geotextile - cov dej hauv av txheej (300mm gravel txheej los yog ntuj stratum nrog zoo permeability. , drainage layer Dig muag ditch) a leveling base layer.
Cov qauv ntawm cov txheej txheem tiv thaiv dej ntawm tailings pas dej nqes hav (tsis muaj dej hauv av raug cheeb tsam): tailings - sodium bentonite waterproof pam Hoobkas 500g / m² geotextile - leveling puag txheej.
Cov qauv ntawm cov txheej txheem los tiv thaiv cov dej ntws ntawm tailings pas dej nqes hav (nrog rau hauv av raug cheeb tsam): tailings - sodium-based bentonite waterproof pam - cov dej hauv av txheej (6.3mm composite geotechnical drainage grid, branched drainage dig muag ditch) - leveling puag txheej.
Lub sij hawm xa tuaj: Mar-11-2022