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本文以剩余推力法为基础,应用临界滑移场的理论,建立危险滑面的搜寻方法,可以求解临界状态下的滑面。作者结合人工开挖边坡与山体边坡复合体的变形特点,应用临界滑移场的扩展方法,进行反向搜索,即给定安全系数,搜寻允许的最大坡角,并结合实例进行了到界边坡的优化设计,从而给出到界边坡的最佳设计坡角,修正原设计中的不足,确保矿山安全和资源回收率。
Based on the residual thrust method and using the theory of critical slip field, this paper establishes a search method of dangerous slip surface, which can solve the slip surface in the critical state. Combined with the deformation characteristics of the artificial excavated slope and the mountain slope complex, the author applied the expansion method of the critical slip field to conduct the reverse search, that is to say, given the safety factor, the maximum allowable slope angle, and combined with the examples The optimal design of the boundary slope gives the best design slope angle to the boundary slope, amends the deficiencies in the original design to ensure mine safety and resource recovery rate.