某上游式尾矿坝安全性评价方法分析研究

Methodology of Safety Evaluation for Tailings Dams

尾矿库安全性评价在尾矿库运行中是一项至关重要的工作。本文借助实际工程实例,使用规范规定的计算方法和公式,结合工程力学和流体力学基础理论知识,研究了尾矿库坝坡稳定性和尾矿渗流稳定性的评价方法和计算过程,对现有的尾矿库安全性进行了评价。同时,通过实验室重塑性试验取得了尾矿体的各项参数,应用二维边坡稳定性和渗流稳定性计算软件对尾矿库的稳定性进行了计算,对比解析法和数值法计算结果的异同,分析了产生差异的原因,为尾矿库安全性评价工作提供借鉴。

The safety evaluation of tailing dams is a piece of important work in tailings dam operation. Using the data from real project cases and standard calculation methods and formulas,as well as engineering mechanics and fluid mechanics basic,this work analyzes calculation and evaluation methods of the tailings dam slope stability and seepage safety. Meanwhile,ore body parameters are measured by laboratory reshape tests,and the tailings dam slope stability and seepage safety are calculated by the analytical method and numerical simulation,separately. Then this paper compares the differences of the two methods,analyzes their causes. These results provide some references for safety evaluation of tailing dams.