Distortion and failure character of excavation slope in approximate level red beds

CHENG Qiang; ZHOU Yong-jiang; HUANG Shao-bin

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Distortion and failure character of excavation slope in approximate level red beds

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- Distortion and failure character of excavation slope in approximate level red beds
- Vol. 25, Issue 8期　刊出日, (2004)
- 作者机构：
  
  1. 西南交通大学土木工程学院,四川,成都,610031
  2. 四川省交通厅公路规划勘察设计研究院,四川,成都,610041
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU457
- Online First：25 July 2014，
  
  Published：2004
- 稿件说明：
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CHENG Qiang, ZHOU Yong-jiang, HUANG Shao-bin. Distortion and failure character of excavation slope in approximate level red beds[J]. 2004, 25(8期　刊出日).
DOI：

CHENG Qiang, ZHOU Yong-jiang, HUANG Shao-bin. Distortion and failure character of excavation slope in approximate level red beds[J]. 2004, 25(8期　刊出日). DOI：

摘要

通过对四川盆地近水平红层公路建设中路堑边坡开挖病害的调查分析，归纳出近水平红层边坡开挖引起的主要变形破坏型式是堆积层滑坡、顺层座滑型滑坡、边坡拉裂变形、边坡岩体倾倒破坏，总结了近水平红层边坡的主要工程地质特征，提出边坡变形破坏的过程一般经历开挖卸荷变形、陡倾节理发展扩大、变形破坏形成三个阶段，并结合工程实例分析了其形成机理。

Abstract

By diagnosing the slope excavation diseases during the highway construction in Sichuan basin

the main distortions and failure types of slopes in approximate level red beds are concluded

that is accumulation formation landslide

bedding landslide

rip distortion of rock mass and rock mass collapse. The main geological character of slope in approximate level red beds is summed up; the three phases of slope distortion and failure

that is excavation load-off distortion

developing and widening of steep joint

distortion and failure come into being

are put forward; Finally

the failure mechanism is analyzed combined a project example.

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