影响尾矿坝渗流场的因素分析

在将尾矿坝剖面概化为一基本剖面的基础上 ,探讨了坝体内各层渗透系数之比、尾矿堆坝干滩长度、尾矿堆坝上游坡度、下游坡度、出口附近渗透系数降低等因素对尾矿坝浸润线的特殊影响 ,提出尾矿坝前期设计中应综合考虑能够降低浸润线的各因素 ,以设计出更合适的坝型、排渗设施及其合理尺寸。笔者对影响尾矿坝渗流场的因素分析和研究的结果可为尾矿坝设计、施工及尾矿坝的管理提供参考。

Analysis of Factors Affecting Seepage Field of Tailings Dam

After simplifying the section of tailings dam into a basic section, factors such as the ratio of seepage coefficient of various layers of the dam body, the length of dry tailings, the upstream batter, the downstream batter and the seepage coefficient reduced near the outlet specially affecting the seepage line of the dam were discussed. It suggests that all kinds of influential factors which would lower the seepage line should be considered comprehensively in the primary design of the tailings dam, so that the appropriate dam type, drainage system and rational size would be designed. These results could provide engineering reference for design, construction and management of the tailings dam.