Abstract:

Abstract： The author calculates the security coefficient with different slope angle by Sweden slice method, determines that the most favorable combination of slope stability and economic feasibility comes with a slope angle of 34°. The article simulates the changes of the displacement and stress at slope angle 34° during the coal and rock mining process by the numerical simulation method, and analyzes the potential slipping areas. The results suggest that the slope angle of 33° is the best choice for the safety and efficiency consideration.

摘要：

摘　要：通过瑞典条分法计算出不同边坡角下的安全系数，并确定了边坡角在34°时，边坡的稳定性和经济性可实现最佳组合；然后利用数值模拟计算的方法模拟了在34°边坡角下煤岩开挖过程中边坡的位移和应力变化情况，并分析了其潜在的局部滑动区，最终建议边坡角定为33°更安全经济。