某尾矿库三维渗流分析

3D Seepage Analysis of a Tailings Dam

针对某尾矿库具体条件,采用三维有限元模拟和渗流场分布计算,判明在概化模型理想条件下尾矿坝三维渗流浸润线埋深的特点;通过对各排渗结构参数的敏感性进行分析,确定影响坝体浸润线埋深主要因素。模拟结果表明:在各排渗结构功能正常的工况下,尾矿库浸润线在尾砂子坝段的埋深均在15 m以下,大于规范要求值。

In view of specific conditions of some tailings dam,three-dimensional finite element simulation method and the computing of seepage field distribution were adopted to fix the features of 3D seepage line depth of railings dam under i- deal conditions of a generalized model ; Through analyzing the structural parameters＂ sensitivity of the seepage drainage, the main factors for impacting the dam seepage line depth were determined. The simulation showed that under the normal work- ing of each drainage structure in function, the depth of tailings seepage line at tailing sub-dam is 15 m below, which is high- er than the required value by the specification.