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边坡的设计参数是随机变量,在评估边坡的安全性时应充分考虑设计参数的变异性。用基于可靠性方法的可靠度来评价边坡的安全水平,用有限单元法来模拟边坡的破坏过程。通过三组参数分别计算边坡的安全系数和可靠度,计算结果表明设计参量的变异性是影响边坡安全性的重要因素、用可靠度评价边坡安全度是合理的。
The design parameters of slopes are random variables. When evaluating the safety of slopes, the variability of design parameters should be fully considered. The reliability of the slope is evaluated based on the reliability of the reliability method. The finite element method is used to simulate the failure process of the slope. The safety factor and reliability of the slope are calculated respectively by three sets of parameters. The calculation results show that the variability of design parameters is an important factor affecting the slope safety. It is reasonable to use the reliability to evaluate the slope safety.