土工基础

土工基础 ›› 2026, Vol. 40 ›› Issue (1): 75-80.

• 专题论述 • 上一篇    下一篇

基于突变理论的降雨条件下黄土边坡稳定分析

周正山1，张彦洪1，张斌伟1,2   

  1. （1.甘肃农业大学水利水电工程学院，兰州 730070；2.陇东学院土木工程学院，甘肃庆阳 745000）
  • 收稿日期:2024-01-27 修回日期:2024-02-07 出版日期:2026-02-28 发布日期:2026-04-22
  • 通讯作者: 张斌伟（1981-），男，教授,研究方向为岩土与地下工程等。
  • 作者简介:周正山（1996-），男，硕士研究生，研究方向为黄土边坡稳定分析。
  • 基金资助:
    甘肃省庆阳市科技计划项目（QY-STK-2022A-115）

Analysis of Loess Slope Stability Under Rainfall Conditions Based on Mutation Theory

ZHOU Zhengshan1, ZHANG Yanhong1， ZHANG Binwei1,2   

  1. (1.College of Water Resources and Hydropower Engineering, Gansu Agricultural University, Lanzhou 730070；
    2.College of Civil Engineering, Longdong University, Qingyang 745000)
  • Received:2024-01-27 Revised:2024-02-07 Online:2026-02-28 Published:2026-04-22

摘要： 为了深入分析研究降雨条件下黄土边坡的稳定特性,构建了基于突变理论的降雨条件下黄土边坡稳定分析评判体系，对黄土边坡在降雨条件下的稳定性进行了分析评判；应用正交原理对影响降雨条件下黄土边坡稳定性的降雨强度、黏聚力、内摩擦角、容重、坡角、坡高等因素进行方案优化和极差分析，来判别各因素对降雨条件下黄土边坡稳定性的影响程度。结果显示，降雨强度在降雨条件下黄土边坡的稳定性分析中发挥主要作用，但黄土边坡的自身特性（如：内摩擦角、坡高、黏聚力等因素）对降雨条件下黄土边坡的稳定性影响更大；同时该评判体系避免了基于Morgenstern-Price法的单一数值分析方法进行黄土边坡稳定性分析的局限性，可以较为全面的分析评判各因素对降雨条件下黄土边坡稳定性的综合影响，以期为应用该体系分析评判复杂条件下的黄土边坡稳定性提供参考。


关键词: 黄土边坡, 突变理论, 降雨条件, 正交试验, 稳定性分析

Abstract: This paper presents an in-depth analysis and research on the stability characteristics of loess slopes under rainfall conditions. A stability analysis and evaluation system for loess slopes under rainfall conditions by using the mutation theory was established, and the stability of loess slopes under rainfall conditions was analyzed and evaluated. The orthogonal principle was applied to optimize and analyze the range of factors that affect the stability of loess slopes under rainfall conditions, including rainfall intensity, cohesion, internal friction angle, bulk density, slope angle, and slope height, in order to determine the degree of influence of each factor on the stability of loess slopes under rainfall conditions. The results show that rainfall intensity plays a major role in the stability analysis of loess slopes under rainfall conditions, but the inherent characteristics of loess slopes (such as internal friction angle, slope height, cohesion, etc.) have a greater impact on the stability of loess slopes under rainfall conditions; At the same time, this evaluation system avoids the limitations of a single numerical analysis method based on the Morgenstern Price method for analyzing the stability of loess slopes. It can comprehensively analyze and evaluate the comprehensive impact of various factors on the stability of loess slopes under rainfall conditions, in order to provide reference for the application of this system to analyze and evaluate the stability of loess slopes under complex conditions.

Key words: Loess Slopes, Mutation Theory, Rainfall Conditions, Orthogonal Test, Stability Analysis

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