基于渗流分析的某尾矿库坝体稳定性研究

Study on dam stability of a tailings reservoir based on seepage analysis

尾矿库作为矿山生产中的重要组成部分,其运行状况与周边居民生命财产安全及自然环境息息相关。以某尾矿库为研究背景,从理论计算方面研究了坝体的稳定性。首先将坝体材料的抗渗强度与采用水力学法计算出的各堆积层安全系数进行对比,对坝体的整体稳定性进行初步分析。然后通过尾矿库渗透性破坏以及浸润线的计算,推断溢出点的位置和坝体浸润线方程,可以对尾矿库不同运行周期的坝体稳定性进行合理的控制,从而为尾矿库的安全运行提供一定的建议。

Tailings reservoir as an important part of mine production,the operation of tailings reservoir is closely related to the safety of life and the natural environment of surrounding residents.Taking a tailings pond as the research background,the stability of the dam is studied from the theoretical calculation.Firstly,the impermeability strength of the dam material is compared with the safety factor of each accumulation layer calculated by hydraulic method,and the overall stability of the dam body is preliminarily analyzed.Then,through the calculation of seepage failure and saturation line of tailings pond,the location of overflow point and saturation line equation of dam body are deduced,which can reasonably control the stability of dam body in different operation periods of tailings pond,so as to provide certain guidance and suggestions for the safe operation of tailings pond.