黄土边坡稳定性分析方法研究  

Study of Analysis Method for Loess Slope Stability

作　　者：李帆[1] 杨建国[2] 

机构地区：[1]河北工业大学,天津300130 [2]铁道第三勘察设计院集团有限公司,天津300142

出　　处：《铁道工程学报》2008年第12期33-36,共4页Journal of Railway Engineering Society

摘　　要：研究目的:为了寻求一种新的黄土边坡稳定性分析方法,解决极限平衡法不能将黄土垂直节理发育特性纳入到分析过程中的弊端,本文采用ABAQUS软件,利用有限元法对黄土路堑边坡进行数值模拟,在黄土边坡稳定性分析中对岩、土体内部节理、裂隙参数进行计算。研究结论:利用有限元法对黄土边坡的稳定性进行分析,能够考虑黄土边坡垂直节理发育的特性,与极限平衡法相比,有限元法对黄土边坡稳定性分析具有明显的优越性。算例表明ABAQUS有限元软件中的节理材料模型适用于黄土边坡,ABAQUS软件在黄土边坡稳定性分析方面具有良好的适用性。Research purposes： In this paper, a new method for analyzing loess slope stability is proposed, with which the vertical joints character of loess can be calculated. Using ABAQUS software and finite element method, the analysis of the loess slope is made through numerical simulation, and the calculation is made on the parameters of the joints and crack inner of rock or soil in the course of stability analysis of loess slope. Research conclusions：This paper utilizes the finite element method to analysis the stability of loess slope, which can consider the vertical joints of loess slope. Compared with limit equilibrium method, the finite element method is much better in analysis of loess slope stability. The calculation example shows that the joint material model in ABAQUS is suitable for loess slope and ABAQUS finite element software applies to the study on stability of loess slope.

关 键 词：黄土边坡 垂直节理 边坡稳定性 有限元分析 

分 类 号：P642[天文地球—工程地质学]