基于三维裂隙网络模拟的随机楔体稳定分析

Three-dimensional network simulation on fissures and the stability analysis on random wedge blocks

水工建筑物深开挖边坡中大量出现的随机楔体 ,是由广泛分布于裂隙岩体中的结构面组成的。研究楔体的稳定性 ,首先要研究结构面的分布规律。由于裂隙的分布具有随机性与交叉复杂性 ,目前无法用确定性的研究方法进行研究 ,因此 ,应用概率与统计学的理论 ,分析组成楔体结构面的分布及组合特征 ,采用三维结构面网络模拟的方法模拟边坡工程中的结构面分布 ,进一步研究随机楔体的分布规律是研究这类问题的重要途径。基于三维裂隙网络随机模拟的方法 ,提出了随机楔体稳定分析的方法 ,可为边坡加固提供理论依据。

To counter the random wedge that usually occurs in the deep excavation of side slope of hydraulic structure, this paper uses the theories of probability and statistics to analyze the distribution and compound features of the structure faces of wedge. The three dimensional structure face network simulation method was used to simulate the structure face distribution of side slope works in order to further study the distribution laws and stability of random wedge blocks. The stability analysis method of three dimensional random wedge blocks overcomes the shortage of existing two dimensional structure face network simulation method and can provide the theoretical basis for the reinforcement of side slope.