长期运行尾矿库的排渗系统渗透特性的差异化反演分析  

Differential inversion analysis of permeability characteristics of drainage system in long-term tailings pond

作　　者：陶东良[1] 吴蒙蒙 满健铭 徐力群[3] TAO Dongliang;WU Mengmeng;MAN Jianming;XU Liqun(Changsha Engineering & Research Institute Co.,LTD.of Nonferrous Metallurgy,Changsha 410011,China;Luanchuan Environmental Protection Bureau,Luoyang Henan 471500,China;College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China;Guangxi Yulin Water and Power Design Instiute,Yuin Guangxi 537000,China)

机构地区：[1]长沙有色冶金设计研究院有限公司,长沙410011 [2]洛阳栾川钼业集团股份有限公司,河南洛阳471500 [3]河海大学水利水电学院,南京210098 [4]广西玉林水利电力勘测设计研究院,广西玉林537000

出　　处：《有色金属（矿山部分）》2021年第4期18-22,共5页NONFERROUS METALS(Mining Section）

基　　金：“十三五”国家重点研发计划项目(2019YFC1510802)。

摘　　要：排渗系统是尾矿库的重要组成部分之一,对尾矿库的安全稳定有着重大影响。针对长期运行的上游式尾矿库排渗系统的渗透特性反演分析问题,考虑到系统不同位置排渗能力存在差异,提出了渗透特性差异化假定的反演分析。选取某已运行多年的上游式尾矿库,结合工程现状,建立三维有限元反演分析模型,基于可变容差法对排渗系统的渗透特性进行差异化反演分析,研究了尾矿库渗流场分布规律,并对反演分析结果的合理性及准确性进行了评价。结果表明:经差异化反演分析后,计算得到的浸润面数据更符合实际情况,反演成果可为尾矿库后期加高设计提供合理依据。The drainage system is one of the important components of the tailings pond,which has a significant impact on the safety and stability of the tailings pond.Aiming at the problem of the inversion analysis of the permeability characteristics of the upstream tailings pond drainage system in long-term operation,considering the difference of the drainage capacity of the system at different locations,the inversion analysis of the differential assumption of the permeability characteristics was proposed.A upstream tailings pond that has been running for many years was selected.Combined with the engineering status,a three-dimensional finite element inversion analysis model was established.Based on the variable tolerance method,the differential inversion analysis of the permeability characteristics of the drainage system was carried out.The distribution law of the seepage field of the tailings pond was studied,and the rationality and accuracy of the inversion analysis results were evaluated.The results show that after the differential inversion analysis,the calculated infiltration surface data were more in line with the actual situation,and the inversion results can provide a reasonable basis for the later heightening design of the tailings pond.

关 键 词：上游式尾矿库 长期运行 排渗系统 渗透特性 反演分析 差异化 

分 类 号：TD926.4[矿业工程—选矿]