为消除响水冲尾砂库造成的安全威胁、恢复库区生态环境、综合回收尾砂中的资源、利用尾砂充填采空区,决定重启该库的尾砂开采工作。使用弹塑性有限元模拟,对当前尾砂坝及邻坝尾砂被开采时的稳定性变化进行了分析,结果表明,随着附近尾砂开采量的增加,坝体顶部的稳定性将发生破坏。结合尾砂开采实际情况,根据模拟分析结论,提出了开采建议。 In order to eliminate the safety threat caused by the flood and scour the sand bank, restore the ecological environment in the reservoir area, comprehensively recover the resources in the tailings, and use the tailings to fill the gob area, it is decided to restart the tailings mining of this reservoir. The elastoplastic finite element simulation is used to analyze the stability changes of the tailings dam and the adjacent tailings when they are being mined. The results show that the stability of the top of the dam will be destroyed with the increase of the tailing sand mining volume nearby . Combined with the actual situation of tailings mining, according to the conclusions of simulation analysis, proposed mining proposal.