三峡大学学报（自然科学版）2025，Vol.47Issue(4)：11-15,5.DOI:10.13393/j.cnki.issn.1672-948X.2025.04.002
某尾矿库塌坑处理方案的三维渗流优化比选研究
Study on Seepage Optimization and Comparison of a Tailings Pond Collapse Treatment Measures
摘要
Abstract
The tailings leakage occurred in a tailings pond,forming a collapse pit in the dry beach area which was subsequently backfilled with blocks,soil,and stone materials during emergency treatment.To prevent subsequent damage to the tailings pond,two treatment measures including laying a filter layer or geomembrane in the collapse area were proposed.To determine the optimal treatment measures,the seepage inversion was firstly performed by three-dimensional seepage analysis based on the monitor data of the phreatic line,then the suitable permeability of the dam body and foundation was determined,and finally the buried depth of the phreatic line,the hydraulic gradient near the collapse pit backfill area,and discharge were studied and analyzed comprehensively under the two treatment measures.The results show that the overall seepage field under the two treatment measures is similar to that before the collapse pit.The hydraulic gradient near the collapse area can be stable to meet the requirements and the seepage flow of the flood discharge tunnel is close.But the treatment scheme of setting geomembrane will increase the phreatic line in the collapse area,which is not conducive to the stability of the dam and dam body in the later stage.Therefore,it is recommended to adopt the scheme of laying the filter layer.The research results provide a basis for the accident treatment of the tailings pond,and can also provide a reference for the accident treatment of other tailings pond collapses.关键词
尾矿库/塌坑/浸润线/土工膜/反滤层Key words
tailings pond/collapse pits/infiltration line/geomembrane/filter layer分类
水利科学引用本文复制引用
马晓旭,赵乐萱,王睿齐,傅灿,罗玉龙..某尾矿库塌坑处理方案的三维渗流优化比选研究[J].三峡大学学报（自然科学版）,2025,47(4):11-15,5.基金项目
国家重点研发计划(2017YFC1502603) （2017YFC1502603）
国家自然科学基金项目(51679070) （51679070）
湖南省水利科技项目(XSKJ2022068-37,XSKJ2024064-41) （XSKJ2022068-37,XSKJ2024064-41）
中国科学院青海盐湖研究所基础研究青年创新交叉团队(islJCTD-2022-2) （islJCTD-2022-2）
