当滑坡设计安全系数较小时，岩土体抗滑强度未得到充分发挥，有限元与极限分析法有一定差距；
When the pile design safety factor is small, the anti-slide strength of rock and soil is not fully exerted. The finite element method has some discrepancy with the traditional method.
结果表明：路面状况指数、路面行驶质量指数、路面强度系数和路面抗滑摆值的预测数据有较高的精度。
The results show that predicted data of pavement condition index, riding quality index, structure strength index and British pendulum number is much better precision.
强度折减方法是目前求解坝基抗滑稳定安全系数的常用方法。
The method of strength reduction is used widely in solving the anti-slide safety coefficient of the base of dam.
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