摘要
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。
This paper provided a method to determine strength parameters of structural surface of rocky slope based on the stochastic theory and back analysis. The prior probability distribution functions of strength parameters were first es- tablished according to the discrete and statistical analysis of measured data, and the samples of strength parameters were populated in compliance with these prior probability functions. The objective function was selected as the safety factor in natural rocky slope under the condition of the extreme historical earthquake and storm; The target parameter samples were generated through the inversion analysis of rock slope stability resulting in the posterior probability functions. This method can avoid the disadvantage of adjusting any one strength parameter to reach target safety factor in back calcula- tion. It can provide a strong reference for project government.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2013年第1期99-102,共4页
Journal of Wuhan University of Technology
基金
国家"973"研究计划(2011CB013504)
国家杰出青年科学基金(51025932)
关键词
岩质边坡
稳定分析
反演分析
概率函数
rocky slope
stability analysis
inversion analysis
probability distribution function
