摘要
以某尾矿库为实例,分析尾矿的沉积规律和尾矿坝的稳定性。假定地下水流网为简单方格型,坝体为均质,针对坝体堆积现状标高和设计终期标高,分别考虑正常运行和洪水运行2种工况,用瑞典圆弧法和简化Bishop法分别进行稳定性计算。根据计算成果分析危险滑弧的分布规律和2种方法所得安全系数的差异。指出为了得出准确的计算结果,需要全面收集资料,建立符合实际的模型,采用合理的计算参数,进行现场浸润线和孔隙水压力监测。
Taking a tailings pond as an example, the sedimentary feature of tailings and the stability of tailings dam are analyzed. As- suming that groundwater flow is simple grid and the dam is homo- geneous, considering both different working condition of in nor- mal operating and in flood, stability of the present accumulation height and designed final height is calculated by using Swedish cir- cular arc method and simplified Bishop method. According to the calculation results, dangerous slide arc distribution rules and the differences between the two safety factors are analyzed. Pointed out that in order to get accurate results, it is necessary to collect comprehensive data, establish more realistic model, adopt more reasonable calculation parameters, and monitor the seepage line and pore water pressure.
出处
《西部探矿工程》
CAS
2014年第4期74-77,共4页
West-China Exploration Engineering
关键词
尾矿坝
沉积规律
稳定性计算
浸润线
Tailing dam
sedimentary rule
stability calculation
seepage line
