尾矿库副坝方案研究

Study on the auxiliary dam scheme of tailings pond

以国内某大型矿山尾矿库的副坝方案设计为背景,对副坝的结构形式进行方案比较,对于山体较薄、工程地质条件差的情况,上游式尾矿堆筑副坝是一种非常有效的方式,稳定可靠且经济合理,带来的问题是影响到尾矿库排洪、回水、输送、排放等设施的布置,副坝处汛期的最小干滩长度及最小安全超高可能成为整个尾矿库的控制指标。

Based on the design scheme of the auxiliary dam of a domestic large tailings pond,the structure of auxiliary dam was analyzed. The upstream embankment method is very suitable for the auxiliary dam construction in thinner mountain area and under poor engineering geological conditions,and it is stable and reasonable in economy. But the problem is the effect on the arrangement of tailings facilities. The minimum beach width and the minimum free height of auxiliary dam may become the control indexes of whole tailings pond in flood season.