工程中的有限元计算能反映边坡的变形特征、应力状态和破坏机理，但是尚不能给出一个直观的安全系数。
The FEM computation of engineering can reflect the characteristic of deformation, stress state and destroy mechanism of slope, but can not get an intuitionistic safety factory.
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.
经计算分析，大岩淌边坡的破坏模式是整体破坏，其整体安全系数约为1.143，不存在新的局部滑动破坏模式。
The results show that the local unstability of Dayantang slope will not occur, and the minimum safety factor of the entire slope is about 1.143.
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