南京江宁区某退役小型硫铁矿尾矿库的治理方法  

TREATMENT OF A MINI PYRITIC MINE TAILINGS DAM RETIREDIN JIANGNING NANJING

作　　者：邢姝[1] 陈征宙[1] 邹春江[1] 韩非[1] 缪世贤[1] 

机构地区：[1]南京大学地球科学与工程学院,南京210093

出　　处：《地质灾害与环境保护》2009年第4期62-66,共5页Journal of Geological Hazards and Environment Preservation

摘　　要：针对江宁区某退役小型硫铁矿出现的不良地质现象,对该尾矿坝进行了抗滑以及抗渗稳定性计算和分析,指出坝体处于不稳定状态,并提出具体治理方法。治理的方案包括降低坝体高度减载,在坡脚处反压坝体增加坝体稳定性,设置排渗设施降低浸润线高度,修筑排水沟阻止地表水停留在库区表面。最后需验证治理后尾矿坝在地震作用下的稳定性,运用时程分析法对设计后的坝体进行了动力有限元的分析,结果表明坝体内部和整体处于较稳定的状态。Based on the unfavorable geological phenomena of a retired mini pyritic mine tailings dam in Jiangning, seepage stability and anti-slide stability were analyzed, and a strengthening measures were proposed in this paper. The measures include off-loading the dam by reducing its height, pressing the dam toe to improve the safety, laying horizontal drainage pipes to lowdown the height of the seepage and arranging drain ditch to stop water staying on the surface of the tailing dam. To prove the stability of the designed dam in the earthquake, dynamic finite element analysis with the time history method was adopted, and the results indicated the dam was stable.

关 键 词：尾矿库 地质灾害 稳定性分析 动力有限元 

分 类 号：TD167[矿业工程—矿山地质测量]