不同卸荷应力路径下岩体破坏特征试验研究

山东大学学报(工学版)

不同卸荷应力路径下岩体破坏特征试验研究

张宏博¹，宋修广¹，黄茂松²，商庆森¹

1. 山东大学土建与水利学院，山东济南250061;2. 同济大学地下建筑与工程系,上海200092

收稿日期:2007-03-26 修回日期:1900-01-01 出版日期:2007-12-24 发布日期:2007-12-24
通讯作者: 张宏博

Research on failure features of rock under different stress unloading path

ZHANG Hong-bo¹,SONG Xiu-guang¹,HUANG MAO-Song²,SHANG Qing-sen¹

1. School of Civil Engineering,Shandong University,Jinan 250061,China;2. Department of Geotechnical Engineering,Tongji University

Received:2007-03-26 Revised:1900-01-01 Online:2007-12-24 Published:2007-12-24
Contact: ZHANG Hong-bo

摘要/Abstract

摘要： 隧道施工引起围岩应力释放的问题值得关注，目前对不同开挖方式引起隧道围岩强度及破坏的研究较少.因此，通过采用岩石三轴试验机，模拟隧道的不同开挖工况，针对不同卸荷应力路径下的岩石强度及破坏特征进行了深入研究，提出了相应的结论，可为后续理论研究提供试验参考.

关键词: 隧道开挖, 卸荷应力路径, 破坏特征, 三轴试验

Abstract: Stress relief of rock because of tunnel excavation should be paid attention to by engineers. Up to date, there are few researches on the strength and failure feature of rock around tunnel because of different excavation ways. Aiming to this phenomenon, the authors adopted rock triaxial test apparatus to model different stress unloading path according to excavation ways. Conclusions are drawn in detail with reference value on theory research.

Key words: tunnel excavation, stress unloading path, failure feature, rock triaxial test

中图分类号:

TU459.1

张宏博,宋修广,黄茂松,商庆森 . 不同卸荷应力路径下岩体破坏特征试验研究[J]. 山东大学学报(工学版), 2007, 37(6): 83-86 .

ZHANG Hong-bo,SONG Xiu-guang,HUANG MAO-Song,SHANG Qing-sen . Research on failure features of rock under different stress unloading path[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2007, 37(6): 83-86 .

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