Evaluation of rock slope stability in stage excavation process
 by using strength reduction FEM

JIANG Xue-liang; CAO Ping

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Evaluation of rock slope stability in stage excavation process by using strength reduction FEM

更新时间：2026-06-25

- Evaluation of rock slope stability in stage excavation process by using strength reduction FEM
- Vol. 27, Issue S1, (2006)
- 作者机构：
  
  1. 中南大学资源与安全工程学院,长沙,410083
  2. 湖南城市学院土木工程学院,益阳,413000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU45
- Online First：15 December 2006，
  
  Published：2006
- 稿件说明：
移动端阅览
JIANG Xue-liang, CAO Ping. Evaluation of rock slope stability in stage excavation process by using strength reduction FEM[J]. 2006, 27(S1).
DOI：

JIANG Xue-liang, CAO Ping. Evaluation of rock slope stability in stage excavation process by using strength reduction FEM[J]. 2006, 27(S1). DOI：

摘要

采取该弹塑性有限元程序，在考虑施工爆破、岩体节理影响的条件下，对常－张高速公路的重点边坡的施工过程进行了模拟，分析了开挖过程中，岩体的变形和应力状态及屈服状态，并用降低材料强度储备的有限元强度折减法，根据边坡岩体单元的屈服连通程度和关键部位的位移变化对高边坡的整体安全系数进行了研究。通过对重点边坡K123的分析表明，边坡在其施工过程中是稳定的。

Abstract

The simulation of stage excavation of the high slope of Chang-Zhang Expressway is carried out by using two-dimensional elastoplastic finite element method

considering the influence of blasting and rock joint. The rock mass’s deformation

stresses and yielding state in the excavation process are analyzed respectively.The integral safety of the high slope is discussed by using the method of lowing material’s strength safety factor and in light of the yielding rate of the slope’s rock mass element and variation of displacements of the key parts. Through researching the important slope K123

a conclusion that the slopes are stable in construction process

is drawn.

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Related Author

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XU Hua

LUO Qiang

ZHAO Lian-heng

LI Liang

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Related Institution

Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

Sui-Yue Expressway Construction Manayement Office of Province

Department of Communications of Guizhou Province

School of Civil Engineering, Central South University

Guizhou Transportation Planning Survey and Design Academe Co., Ltd.

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