中等倾角顺层高边坡结构优化与稳定性研究

Structural Optimization and Stability Study on Bedding High Slope with Medium Angle

通过现场调查、勘察以及试验等多种手段,在对中等倾角顺层边坡现状分析研究的基础上,对边坡层面倾角小于台阶边坡角的不稳定边坡结构提出优化方案,采取放缓台阶坡面倾角、增大台阶高度、减少平台数量等方法,并对具体参数进行计算分析,尽可能提高整体边坡角,在保证整体边坡稳定性满足要求的前提下减少矿山废石剥离,兼顾了露天矿山开采的安全性与经济性。边坡结构优化方案能明显提高边坡稳定性,为类似露天矿山边坡的设计提供借鉴和参考。

Trough field investigation,exploration and test,the characteristics of bedding slope with medium angle is studied,the optimization scheme of the unstable structure slope that the slope layer angle is less than step slope angle is proposed,the detailed measures includes decreasing step slope angle,increasing step height and decreasing step numbers. The specific parameters of the above optimization scheme is calculated so as to increase the overall slope angle as much as possible,and reduce the stripping amount of mine waste rock under the premise of slope stability,therefore,the economic and safety of open-pit mine mining can be considered at the same time. The study results further show that the slope structural optimization scheme proposed in this paper is helpful for improving the slope stability significantly,and it can be provided some valuable reference for the design of open-pit mine slope.