基于MIKE21的尾矿库溃坝数值模拟研究  

Numerical Simulation of Tailings Pond Dam Break Based on MIKE21

作　　者：衡家然[1,2] 冯煜彪 HENG Jiaran;FENG Yubiao(Henan Province Rock and Mineral Testing Center;Henan Mineral Processing and Biological Beneficiation Engineering Technology Research Center)

机构地区：[1]河南省岩石矿物测试中心 [2]河南省矿物加工及生物选矿工程技术研究中心

出　　处：《现代矿业》2024年第9期117-121,127,共6页Modern Mining

基　　金：河南省2021年科技发展计划项目(编号:212102310403)。

摘　　要：尾矿库的安全不仅影响生产效益,还影响人民的生命和财产安全。以河南省某尾矿库为例,利用MIKE21水动力模块,建立尾矿库溃坝数值分析模型,模拟下泄砂流演进过程;对比分析了4种工况下下泄砂流的淹没范围、淹没深度及特征时间点,分析增设拦沙坝后下泄尾砂的淹没特征。研究结果表明:增设拦沙坝后可有效阻拦一部分下泄尾砂,有效减小瞬时溃坝对下游的影响。研究结果对尾矿库增设防护措施,编制应急预案与可行性研究报告,设计安全设施等具有重要意义。The safety of tailings pond not only affects the production benefit,but also affects the safety of people's life and property.Taking a tailings pond in Henan Province as an example,the numerical analy-sis model of tailings pond dam break is established using MIKE21 hydrodynamic module to simulate the evo-lution process of sand discharge flow.The submergence range,submergence depth and characteristic time point of the discharge sand flow under four different working conditions are compared,and the submergence characteristics of the discharge tailings after the addition of the sand bar are analyzed.The research results are of great significance for adding protective measures,preparing emergency plan and feasibility study re-port,designing safety facilities and so on.

关 键 词：尾矿库溃坝 MIKE21 数值模拟 

分 类 号：TD926.4[矿业工程—选矿]