结合FLAC^(3D)与GeoStudio对高路堑边坡的稳定性分析  

Stability analysis of high cutting slope based on FLAC^(3D)and GeoStudio

作　　者：邱昊林 王昆 QIU Haolin;WANG Kun(Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming Yunnan 650000,China)

机构地区：[1]昆明理工大学建筑工程学院,云南昆明650000

出　　处：《工业安全与环保》2025年第4期31-36,共6页Industrial Safety and Environmental Protection

基　　金：云南省基础研究计划项目青年专项(202301AU070022)。

摘　　要：为了对边坡进行快速、便捷且全面的稳定性分析,以某高速公路高路堑边坡为研究对象,基于FLAC^(3D)与GeoStudio这2种数值模拟软件,采用强度折减法、M-P法和Bishop法快速得出高路堑边坡的边坡安全稳定性系数,并且得出天然状态下边坡的应力场、位移场等特征图像,同时对边坡降雨状况下的稳定性进行分析,根据2种数值软件模拟试验结果,选择较快速、全面、综合分析该边坡的稳定性状况的方法。综合天然状态与降雨作用2种状态下的结果,得出该高路堑边坡最不稳定的部位为砂质黏土与全风化片麻岩花岗岩岩层交界处的台阶,找出2种软件的优缺点。In order to quickly,conveniently and comprehensively analyze the slope stability,this study focuses on the high cutting slope of an expressway.Based on FLAC^(3D)and GeoStudio,the slope safety and stability coefficient of high cutting slope is quickly obtained by strength reduction method,M-P method and Bishop method,and the characteristic images of stress field and displacement field of the slope in natural state are obtained.Additionally,the stability of the slope under rainfall is analyzed.According to the simulation test results of two kinds of numerical software,the most effective and comprehensive method is selected to analyze the stability of the slope.By combining the results of natural state and rainfall,it can be concluded that the most unstable part of the high cutting slope is the step at the junction of sandy clay and fully weathered gneiss granite.Furthermore,the study highlights the advantages and disadvantages of the two software tools.

关 键 词：边坡稳定性 FLAC^(3D) GeoStudio 降雨 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]