某尾矿坝反式预埋槽孔排渗管排渗效果有限元数值分析  

Finite Element Numerical Calculation on Drainage Effect of Trans-embedded Slotted Pipe in Tailings Dam

作　　者：仲良[1] 沈振中[1] 王建[1] 张彬[1] 

机构地区：[1]河海大学水利水电学院,江苏南京210098

出　　处：《水电能源科学》2015年第2期60-62,66,共4页Water Resources and Power

摘　　要：针对某拟建尾矿坝采用反式预埋槽孔排渗管排渗系统可能出现的排渗问题,分别采用断面概化法、面积等效法建立了该尾矿坝的三维有限元精细模型,模拟了反式预埋排渗管的排渗效果,分析了其排渗影响范围,并计算确定了其合理布设间距。通过与传统褥垫式排渗方法的排渗效果进行对比分析,提出了排渗槽孔管的简化等效模拟方法并应用于三维模型中。结果表明,该方法简洁有效,适用于类似工程。In view of the seepage drainage problem of a proposed tailings dam,based on generalized section method and area equivalent method,etc,three-dimensional finite element fine model of the tailing dam is established to simulate the drainage effect of trans-embedded slotted pipe.According to the result,the range affected by the trans-embedded slotted pipe in tailings dam is studied.And the reasonable layout spacing is also calculated and determined.In addition,a simplified equivalent method for simulating slotted pipe is given by the comparison of the slotted pipe method and the traditional drainage mattress method.The simplified equivalent method of drainage seepage slotted pipe is applied to three-dimensional model analysis.The results show that this method is simple and effective,which is suitable for similar engineering projects.

关 键 词：尾矿坝 反式预埋槽孔排渗管 排渗效果 有限单元法 等效模拟 

分 类 号：TV139.14[水利工程—水力学及河流动力学]