材料非饱和对尾矿库三维渗流影响分析  

Analysis of the Influence of Material Unsaturation on Three Dimensional Seepage of Tailings Reservoir

作　　者：汤卓[1] 谢建斌[1] 卞荣森 黄华侨[1] 

机构地区：[1]云南大学城市建设与管理学院,云南昆明650091

出　　处：《水利与建筑工程学报》2016年第1期15-20,共6页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金项目(51264037;61163061);云南省应用基础研究计划面上项目(2011FB010;2012FB117);云南大学中青年骨干教师科研资助项目(XT412003)

摘　　要：基于非饱和土渗流理论,针对云南省一尾矿库,采用MIDAS/GTS NX有限元分析软件建立了尾矿库三维渗流有限元模型,得到了正常工况和洪水工况下尾矿库浸润面位置和孔隙水压力分布规律。并在此基础上,将考虑材料非饱和特性渗流计算结果与不考虑材料非饱和特性渗流计算结果进行了对比分析,初步探讨了材料非饱和特性对尾矿库安全稳定运行的影响。结果显示,材料非饱和特性对尾矿库渗流规律的影响显著,不利于尾矿坝的安全稳定运行。Based on the unsaturated soil theory,one tailings dam in Yunnan Province was taken as an example to establish a seepage finite element model by using MIDAS-GTS NX finite element software. The tailings pore water pressure distribution and infiltration line position under normal condition and the condition of flood was acquired.And the calculation results of seepage with and without considering material unsaturation were compared,and preliminary study on the effect of unsaturated material characteristics on the safe and stable operation of the tailings dam was conducted. The results shows that unsaturation has significant influence on the seepage of the tailings dam and is not safe and stable to the operation of tailings dam.

关 键 词：非饱和理论 三维渗流分析 稳定性 尾矿库 

分 类 号：TV64[水利工程—水利水电工程]