路基边坡稳定性评价的关键是如何确定最危险滑裂面的位置并计算与之相对应的安全系数，是非线性优化问题。
The key problem of stability analysis of roadbed slope is how to determine the most dangerous sliding circle and calculate the minimum safety factor, this is a nonlinear problem.
优化后的盲板结构更加合理，其安全系数有所提高。
The structure of closure optimized is more reasonable, with its safety coefficient somewhat increased.
本文首先借助于极限平衡方程以及莫尔-库仑强度理论，建立计算双滑块安全系数的表达式，然后，以该表达式作为目标函数，利用优化理论探讨了双滑块最厄险滑动面的确定方法。
In this paper the equation has been developed for calculating the factors of safety of the double sliding blocks by means of the limit equilibrium and the Mohr-Coulomb strength theory.
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