中文摘要：

针对尾矿库的沉降监测问题,采用岩土数值模拟软件SIGMA/W,根据四川凉山某铜尾矿库的地勘和设计施工资料,对其施工工期至闭库后多年的沉降量进行了模拟计算分析,结果表明,随着子坝的升高,沉降量逐渐增加,沉降量在最高的十二级子坝及库内离坝顶最近处达到最大;另外随着子坝堆积增高,下层子坝会受到库内尾矿土压力,导致尾矿库子坝侧向位移,甚至出现隆起现象。

英文摘要：

Aimed at the settlement monitoring of tailings reservoir,geological exploration and design and construction materials were analyzed in a copper tailings reservoir in Sichuan. The numerical simulation software of geotechnical SIGMA / W was used to simulate and calculate the settlement from construction period to the closed years. The results showed that,with the rise of the sub-dam,the settlement increased gradually,and the maximum settlement would be achieved at the top twelfth subdam and the nearest location to the dam roof. Moreover,with the higher of the tailings accumulation, the lower sub-dams would be affected by tailings soil pressure,and lead to lateral displacement,even hump phenomenon.