露天采矿技术2023，Vol.38Issue(6)：45-47,51,4.DOI:10.13235/j.cnki.ltcm.2023.06.011
基于极限平衡法和有限元法的边坡稳定性综合分析
Comprehensive analysis of slope stability based on limit equilibrium method and finite element method
郭子钰 1王勇 1李晓俊 1王辉2
作者信息
- 1. 中煤科工集团沈阳设计研究院有限公司,辽宁 沈阳 110015
- 2. 国家能源集团国神公司 大南湖二矿,新疆 哈密 839000
- 折叠
摘要
Abstract
In order to study the slope stability under the influence of weak layers in soft rock slopes,and establish a slope model containing weak layers,the article uses limit equilibrium method and finite element method to simulate the slope stability under the influence of weak layers,and explores various evaluation indicators to comprehensively describe the slope stability state.The results show that through finite element method calculation,when the weak layer is retained,the slope stability coefficient is less than 1,and the slope model is connected by shear strain bands.The bottom of the weak layer is sheared out,and the upper part shows a sliding trend.The slope failure mode is a sliding shear type.After removing some weak layers,the stability coefficient of the slope is greater than 1.3,and the shear strain band does not extend through the entire slope model.Using the limit equilibrium method to calculate slope stability,the slip arc is basically consistent with the shear strain band of the finite element method,thus verifying the accuracy of the calculation model.关键词
软岩边坡/强度折减法/有限元法/极限平衡法/边坡稳定系数Key words
soft rock slope/strength reduction method/finite element method/limit equilibrium method/slope stability coefficient分类
矿业与冶金引用本文复制引用
郭子钰,王勇,李晓俊,王辉..基于极限平衡法和有限元法的边坡稳定性综合分析[J].露天采矿技术,2023,38(6):45-47,51,4.
