Numerical analysis of an excavation under roadbed

WANG Qiu-sheng

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Numerical analysis of an excavation under roadbed

更新时间：2026-06-25

- Numerical analysis of an excavation under roadbed
- Vol. 26, Issue S2, (2005)
- 作者机构：
  
  浙江大学岩土工程研究所,杭州,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU433
- Online First：16 December 2005，
  
  Published：2005
- 稿件说明：
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WANG Qiu-sheng. Numerical analysis of an excavation under roadbed[J]. 2005, 26(S2).
DOI：

WANG Qiu-sheng. Numerical analysis of an excavation under roadbed[J]. 2005, 26(S2). DOI：

摘要

公路路基下伏空洞往往会削弱或破坏其上覆岩土层的稳定性，在这类场地上建造工程必须对空洞的稳定性进行全面的勘察和评价。提出了两种利用有限元模拟岩土开挖的方法，利用这两种方法对京—福高速公路徐州段采空区进行了三维弹塑性有限元分析，并对地下空洞对路基的危害程度及施工之后对地基的改善情况作了全面的分析评价。

Abstract

Excavation under the roadbed would destroy its stability . Two methods for excavation simulation are described

one is multi load step method

the other is initial stress loading method. Both are based on tunnel mechanics principles. The former has been used to analyze the excavations under the roadbed of the Beijing-Fuzhou Expressway. The result shows that the method is practical for the construction.

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