矿产与地质
礦產與地質
광산여지질
MINERAL RESOURCES AND GEOLOGY
2014年
2期
231-235
,共5页
赤泥堆场%岩溶%渗漏%治理
赤泥堆場%巖溶%滲漏%治理
적니퇴장%암용%삼루%치리
red mud storage site%karst%seepage%treatment
渗漏问题一直是赤泥堆场的一个难题。在岩溶地区的赤泥堆场,因岩溶裂隙管道的存在,渗漏的产生是必然的,而防渗处理又是一个比较复杂、系统的工程。而对堆存强碱性(溶液的 pH 值≥12)液、固体物的堆场,若发生废液外渗,其对环境的危害及影响都较大。对赤泥堆场岩溶渗漏通道采取垂直帷幕注浆、场内封堵落水洞、赤泥铺盖等综合防渗措施进行治理,通过灌浆前后地层的渗透性对比和泉点水质监测,结果表明防渗治理的效果很好。
滲漏問題一直是赤泥堆場的一箇難題。在巖溶地區的赤泥堆場,因巖溶裂隙管道的存在,滲漏的產生是必然的,而防滲處理又是一箇比較複雜、繫統的工程。而對堆存彊堿性(溶液的 pH 值≥12)液、固體物的堆場,若髮生廢液外滲,其對環境的危害及影響都較大。對赤泥堆場巖溶滲漏通道採取垂直帷幕註漿、場內封堵落水洞、赤泥鋪蓋等綜閤防滲措施進行治理,通過灌漿前後地層的滲透性對比和泉點水質鑑測,結果錶明防滲治理的效果很好。
삼루문제일직시적니퇴장적일개난제。재암용지구적적니퇴장,인암용렬극관도적존재,삼루적산생시필연적,이방삼처리우시일개비교복잡、계통적공정。이대퇴존강감성(용액적 pH 치≥12)액、고체물적퇴장,약발생폐액외삼,기대배경적위해급영향도교대。대적니퇴장암용삼루통도채취수직유막주장、장내봉도낙수동、적니포개등종합방삼조시진행치리,통과관장전후지층적삼투성대비화천점수질감측,결과표명방삼치리적효과흔호。
Seepage is always a problem in red mud storage site.Seepage is inevitable in red mud storage site of karst area because of karst fissures and conduits,and the seepage-proofing treatment is a complicated and systematic project.Strongly alkaline (pH of solution ≥12)liquids or solids will have worse effect on envi-ronment if the fluid waste is seeped.The comprehensive seepage-proofing treatment methods of karst seep-age conduits in red mud storage site include vertical curtain grouting,in-site aven plugging and red mud blan-keting.The comparison of permeability of strata and water quality at outflow points before and after grou-ting shows that the seepage-proofing treatment is effective.