基于Morgenstern-price极限平衡法的尾矿坝边坡稳定性分析

Slop stability analysis of tailings dam based on morgenstern-price limit equilibrium method

尾矿坝的边坡稳定性问题对矿山尾矿库的安全运行至关重要。本文利用GeoStudio软件对某尾矿坝坝体进行建模,运用Slope/W模块中的Morgenstern-price极限平衡方法,采用半正弦函数考虑土条间作用力,对尾矿坝进行边坡稳定性分析计算。通过计算,得出最危险滑弧面及最小安全系数。计算结果表明,应用GeoStudio分析尾矿坝边坡稳定具有一定的实用性和可靠性,为今后尾矿库的安全运行提供一定的指导意义。

The problem of slope stability of tailing dam is of vital importance to the safe operation of mine tailings pond.The slope stability of tailings dam is modeled by using the GeoStudio software through the method of the Morgenstern-price limit equilibrium.Forces between the soil slices are simulated with a half sine function in the Slope/W module.The most dangerous slip surface and minimum safety factor（FOS）are calculated for the slope stability of tailings dam.The calculation results show that the use of GeoStudio has certain practicability and reliability,and has certain guiding significance for the safe operation of tailings pond.