某大型山谷型尾矿库三维渗流稳定性分析  

Three-dimensional Seepage Stability Analysis of a Large Valley Tailings Reservoir

作　　者：李跃强 LI Yueqiang(Hebei Institute of Investigation&Design of Water Conservancy&Hydropower Co.,Ltd.)

机构地区：[1]河北省水利水电勘测设计研究院集团有限公司

出　　处：《现代矿业》2024年第4期204-206,共3页Modern Mining

摘　　要：坝体内渗水浸润线位置是尾矿库安全稳定性的重要因素之一。以某大型山谷型尾矿库为背景,利用有限元分析软件MIDAS/GTSNX中的渗流分析,建立尾矿库三维渗流数值模型,对尾矿库坝体进行三维渗流场模拟分析,并分别考虑有无排渗措施对渗流场的影响。模拟得到了正常、洪水2种运行工况下浸润线位置和水力坡降分布规律;尾矿库坝体内的浸润线位置高低受排渗设施影响显著,合理设置排渗设施有利于尾矿库的渗流稳定。The position of saturation line in the dam is one of the important factors for the safety and stability of tailings reservoir.Taking a large valley tailings reservoir as the background,the three-dimensional seepage numerical model of the tailings reservoir is established by using the seepage analysis in the finite element analysis software MIDAS/GTSNX.The three-dimensional seepage field simulation analysis of the tailings reservoir dam body is carried out,and the influence of seepage discharge measures on the seepage field is considered respectively.The distribution law of saturation line position and hydraulic gradient under normal and flood operating conditions is obtained by simulation.The location of the saturation line in the tail-ings reservoir dam is significantly affected by the drainage facilities,and the reasonable setting of the drainage facilities is conducive to the seepage stability of the tailings reservoir.

关 键 词：山谷型尾矿库 三维渗流场数值模拟 排渗设施 浸润线 

分 类 号：TD926.4[矿业工程—选矿]