【摘要】 以都匀市匀东镇某重晶石选厂尾矿库边坡为研究对象，通过现场取样与室内试验得到各地层物理力学参数，采用Geo-Studio软件进行建模以及利用Seep/W渗流分析模块Van Genuchten模型进行尾矿库渗流场分析并构建出非饱和尾矿库的岩石力学模型，以及利用Morgenstern-Price方法进行计算，分析认为属于不稳定边坡且安全系数为1.151,且降雨随着天数的增加，安全系数变得越来越小。对不稳定边坡，结合现场实际情况，拟采用扶壁式挡土墙方案进行支护，并对支护后的边坡进行稳定性分析。根据建筑规范设计挡土墙，并对挡土墙进行抗倾覆验算和抗滑移验算，得到的安全系数满足建筑规范要求。更多还原

【Abstract】 This paper presents a case history of analysis mitigation of a barite concentrator tailing pond slope in Yundong Town, Duyun City. The physical and mechanical parameters of each soil or rock stratum were obtained throughout the field sampling and laboratory tests. The seepage field analysis of the tailing pond was carried out by using Van Genuchten model of the Seep/W seepage analysis module. The geotechnical model of the unsaturated tailing pond was established, and the Morgenstern-Price method was used for evaluation. The results indicate that the target slope belongs to a marginally stable slope with a factor of safety of 1.151, and the factor of safety becomes smaller with the increase of rainfall days. For the unstable slope, from the actual site conditions, the buttress-type retaining wall was selected for the support. The stability analysis of the mitigated slope is also performed. The retaining wall is designed in consistent with the building code. The overturning and slip aspects of the retaining wall are checked and the resultant factor of safety also meets the requirements of the building code.更多还原