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基于矢量和法的矿山边坡稳定分析方法在边坡的荷载和滑面已知的情况下,运用有限元法计算滑裂面上的真实应力分布,得出滑裂面上各处静滑动摩擦力合力方向的反方向即安全系数的计算方向θ,并在此方向上由抗滑力与滑动力的矢量和得出矢量法安全系数F(θ).本文运用矢量分析法计算出大冶东露天采场F9断裂带内某边坡的安全系数,将计算结果与极限平衡法和有限元强度折减法计算结果进行了分析和比较,分析表明该法与已得到工程验证的有限元强度折减法模拟该边坡渐进破坏的定向分析结果相吻合,说明了矢量分析法的可行性和工程实用性.
Slope stability analysis method based on vector sum method When the slope load and slip surface are known, the real stress distribution on the slip surface is calculated by finite element method, and the static sliding friction everywhere on the slip surface is obtained The opposite direction of the resultant force direction is the calculation direction θ of the safety factor, and in this direction, the safety factor F (θ) of the vector method is derived from the vector sum of the anti-slip force and the slip force.In this paper, The safety factor of a slope in the open cut F9 fault zone is analyzed and compared with the results of the limit equilibrium method and the finite element strength reduction method. The results show that this method is similar to the finite element strength reduction method The results of directional analysis simulating the progressive failure of the slope coincide with each other, which shows the feasibility and practicality of vector analysis.