尾矿库防渗土特性实验测试和数值模拟研究

Experimental test and numerical simulation of seepage control soil characteristics of tailing pond

由于尾矿库防渗土特性对尾矿库建筑安全具有重要影响,为此提出尾矿库防渗土特性实验测试和数值模拟研究。首先利用实验仪器对不同建筑材料的尾矿库物理性质和渗透系数进行测试,测得白泥/风化土夹层结构的渗透系数K20=5.610-8 cm/s,白泥/亚粘土夹层结构的渗透系数K20=4.710-8 cm/s,采用有限元数值模拟软件对尾矿库防渗土特性进行了数值模拟,尾矿库防渗土采用以上材料,透水性弱,防渗效果良好。

Because the characteristics of anti-seepage soil in tailings pond have an important impact on the construction safety of tailings pond,the experimental test and numerical simulation study of seepage control soil characteristics of tailings pond are proposed.Firstly,the physical properties and permeability coefficient of tailings pond with different building materials are tested by using experimental instruments.The permeability coefficient K20 of white mud/weathered soil sandwich structure is 5.610-8 cm/s,and that of white mud/loam sandwich structure is 4.710-8 The seepage control soil of tailing pond is simulated by finite element numerical simulation software.The seepage control soil of tailings pond adopts the above materials,which has weak water permeability and good anti-seepage effect.