露天煤矿工作帮滑移预测分析及控制

Predictive analysis and control of working slope sliding in open-pit coal mine

为探究露天煤矿工作帮边坡变形移动规律,以魏家峁露天煤矿西南工作帮为例,介绍了露天煤矿工程地质与水文地质条件,分析了岩石物理力学性质,利用颗粒流(PFC)方法对边坡移动过程进行模拟,同时结合工作帮边坡实际情况,预测了边坡滑移距离,优化了工作帮开采参数。结果表明:开采参数保障了正常生产和安全稳定。

In order to explore the deformation and movement law of working slope in open-pit coal mine,taking the working slope in the southwest of Weijiamao Open-pit Coal Mine as an example,the article introduces engineering geological and hydrogeological conditions of open-pit coal mine,and analyzes the physical and mechanical properties of rock,simulates the movement process of the slope by using the method of particle flow(PFC).At the same time,the article predicts slip distance of the slope and optimizes the mining parameters of the working slope according to the actual situation of the working slope in the southwest of Weijiamao Open-pit Coal Mine.The results show that the mining parameters ensure the normal production,safety and stability.