土工基础

土工基础 ›› 2021, Vol. 35 ›› Issue (3): 352-355.

• 专题论述 • 上一篇    下一篇

高边坡施工过程动态稳定性评估和施工风险分析

孙同贺   

  1. （中国土木工程集团有限公司，北京 100038）
  • 收稿日期:2020-06-19 修回日期:2020-07-15 出版日期:2021-06-25 发布日期:2021-06-26
  • 作者简介:孙同贺（1986-），男，工程师，研究方向为施工管理。

Slope Stability and Construction Risk Analyses of a High Cut Slope

SUN Tonghe   

  1. (China Civil Engineering Construction Corporation, Beijing 100038)
  • Received:2020-06-19 Revised:2020-07-15 Online:2021-06-25 Published:2021-06-26

摘要： 为研究开挖放坡施工过程对边坡稳定性的影响，以及评估因施工不当给边坡稳定性带来的危害，基于PHASE2有限元分析软件，运用实际工程中的边坡案例，建立有限元分析模型，模拟了施工荷载和分部开挖对边坡稳定性造成的影响。研究超挖给边坡施工带来的风险，并利用PHASE2进行了分析。研究表明：边坡中的特定岩土层交界面的暴露会形成剪切带从而降低边坡的稳定性；开挖如果使原油坡面线变缓和则有利于增加边坡的稳定性。

关键词: 边坡稳定性, 施工, 有限元, 风险分析

Abstract: In order to study the impact of excavation and grading construction process on the slope stability of a high cut slope, and to assess the risks caused by improper construction to the slope stability, finite element analysis were performed using PHASE2 software. This paper presents the actual cut slope stability numerical simulation results. The construction loadings and their distributions on the stability were investigated and excessive slope cut on the construction risk was also evaluated. The main conclusions of this paper are as follows: the exposure of the specific rock-soil interface in the slope will form a shear zone and reduce the stability of the slope; if the excavation softens the slope of the crude oil slope, it will help to increase the stability of the slope.


Key words: Slope Stability, Construction, Finite Element Analysis, Risk Analysis

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