尾矿库溃坝研究及数值模拟

Study on Dam Break of Tailings Pond and Numerical Simulation

尾矿库溃坝的致灾机理主要包括渗透破坏、地震液化、坝体滑坡及洪水漫顶等,其中洪水漫顶引起的溃坝对下游影响最大。在对比了物理模型试验及数值模拟优缺点的基础上,以某尾矿库工程为例,采用CFD软件对尾矿库漫顶溃坝进行数值模拟,分析研究溃坝过程及其对下游的影响程度,同时为应急抢险措施的制定提供依据。

The disaster-causing mechanism of tailings dam break mainly includes seepage failure,earthquake liquefaction,dam landslide and flood overtopping,and the dam break caused by flood overtopping has the greatest impact on the downstream.On the basis of comparing the advantages and disadvantages of physical model experiment and numerical simulation,and taking a tailing pond project as an example,the paper uses CFD software to numerically simulate the overtopping dam break of tailings pond,analyzes and studies the dam break process and its impact on downstream,and provides the basis for the formulation of emergency rescue measures.