兰州理工大学学报

兰州理工大学学报 ›› 2026, Vol. 52 ›› Issue (4): 130-137.doi: 10.13295/j.cnki.issn1673-5196.2026.04.015

• 建筑科学 • 上一篇    下一篇

基于极限平衡法和有限元法的多级黄土高边坡稳定性对比分析

滕鸿伟1,2, 张国华1,2, 王红伟1,2, 杨校辉*3, 黄安平3   

  1. 1.甘肃省地矿局第三地质矿产勘查院,甘肃 兰州 730050;
    2.甘肃地质灾害防治工程勘查设计院有限公司,甘肃 兰州 730050;
    3.兰州理工大学 土木与水利工程学院,甘肃 兰州 730050
  • 收稿日期:2024-08-15 出版日期:2026-08-28 发布日期:2026-09-03
  • 通讯作者: 杨校辉(1986-),男,河南驻马店人,教授.E-mail:yxhui86@126.com
  • 基金资助:
    国家自然科学基金(52368049,52168051),兰州市青年科技人才创新项目(2023-QN-27,2023-QN-52)

Stability analysis of reinforced multi-stage loess high slope based on limit equilibrium method and finite element methods

TENG Hong-wei1,2, ZHANG Guo-hua1,2, WANG Hong-wei1,2, YANG Xiao-hui3, HUANG An-ping3   

  1. 1. The Third Institute of Geology and Minerals Exploration, Gansu Provincial Bureau of Geology and Minerals Exploration and Development, Lanzhou 730050, China;
    2. Gansu Geological Disaster Prevention Engineering Exploration and Design Institute, Lanzhou 730050, China;
    3. School of Civil and Hydrulic Engineering, Lanzhou University of Technology, Lanzhou 730050, China
  • Received:2024-08-15 Online:2026-08-28 Published:2026-09-03

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摘要： 针对极限平衡法(LEM)、有限元法(FEM)和有限元极限分析法(FELAM)在评估边坡稳定性时的差异性,以某土工格栅+框架锚索联合加固多级黄土高填方边坡治理工程为例,利用SLOPE/W、PLAXIS 2D和Optum G2三种数值模拟软件建立相应模型.在验证数值模型有效性的基础上,对比分析自重工况和暴雨工况下未加固边坡、土工格栅加固边坡和土工格栅+框架锚索加固边坡的稳定性.结果表明:LEM和FELAM对边坡稳定性的评估更为接近,而FEM获得的边坡稳定性评估结果比LEM和FELAM更为保守.在边坡稳定性评估和加固设计中,多种方法综合分析使得评估结果更为全面可靠.

关键词: 黄土, 多级高边坡, 稳定性, 极限平衡法, 有限元法, 极限分析有限元法

Abstract: To investigate the differences among the Limit Equilibrium Method (LEM), the Finite Element Method (FEM), and the Finite Element Limit Analysis Method (FELAM) in slope stability assessment, a remediation project of a multitiered high loess fill slope reinforced with a combined system of geogrids and frame anchor cables is taken as an example, and corresponding models are established using three numerical simulation software packages: SLOPE/W, PLAXIS 2D, and Optum G2. On the basis of validating the numerical models, a comparative analysis is carried out on the stability of unreinforced slopes, geogrid-reinforced slopes, and slopes reinforced with a combination of geogrids and frame anchor cables under self-weight conditions and rainfall conditions. The results show that the stability assessments obtained from LEM and FELAM are more consistent with each other, whereas the FEM-based results are more conservative than those from both LEM and FELAM. For slope stability evaluation and reinforcement design, a comprehensive analysis integrating multiple methods yields more thorough and reliable assessment outcomes.

Key words: loess, mult-stage high slope, stability, limit equilibrium method, finite element method, finite element limit analysis method

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