基于随机理论和反演理论给出了一种确定结构面强度参数的方法。通过实测数据的离散性分析和统计分析,确定先验概率分布函数;生成符合先验概率分布函数的参数样本,以天然边坡在已有地震、暴雨条件下的安全系数为反演目标函数,通过边坡稳定反演分析,生成目标参数样本,确定目标参数的后验概率函数。该方法能够避免反演分析过程中调整任一结构面强度参数达到目标安全系数的缺点,为工程治理提供有力的参考。 Based on stochastic theory and inversion theory, a method to determine the strength parameters of structural plane is given. Through the discrete analysis and statistical analysis of the measured data, the prior probability distribution function is determined. The parameter samples conforming to the prior probability distribution function are generated. Taking the safety factor of the natural slope under the existing earthquake and heavy rain as the inversion objective function, Through slope stability inversion analysis, a target parameter sample is generated to determine the posterior probability function of the target parameter. The method can avoid the shortcomings of adjusting the strength parameters of any structural plane to reach the target safety factor in the process of back analysis and provide a powerful reference for engineering management.