一种新型尾矿库排渗竖管垂直排渗方法及其效果分析

Segmental Construction Tailings Dam Seepage Pipe and Its Seepage Effect Analysis

为降低尾矿库的浸润面高度,提出一种新型的分段施工垂直排渗管技术,通过建立某尾矿库的二维有限元渗流模型分析了垂直排渗管技术的合理性。结果表明,该分段施工的尾矿坝排渗管可有效地降低坝体浸润面;通过比较不同垂直排渗方案,提出了在1/2～2/3尾矿库坝高处铺设该排渗管可达最佳效果,证明了该垂直排渗技术可有效地保证尾矿库渗流稳定性和结构安全性。

A new segmental construction vertical seepage pipe technique is proposed to reduce the saturation surface of tailings dam.Two-dimensional finite element seepage model of tailings dam is established to analyze the rationality of vertical seepage pipe technique.The results show that the segmental construction tailings dam seepage pipe can effectively lower the saturation surface.Compared with different vertical seepage scheme,arrangement of the seepage pipe at 1/2 to 2/3 height of the tailing dam is a good choice.Thus,it demonstrates that the vertical seepage technique can effectively ensure the seepage stability and structure safety of the tailing dam.