| 岩质隧洞围岩稳定性分析与强度参数的探讨 |
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| 引用本文： | 杨臻,郑颖人,张红,王谦源,宋雅坤. 岩质隧洞围岩稳定性分析与强度参数的探讨[J]. 地下空间与工程学报, 2009, 5(2) |
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| 作者姓名： | 杨臻 郑颖人 张红 王谦源 宋雅坤 |
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| 作者单位： | 青岛理工大学理学院,青岛,266033;后勤工程学院建筑工程系,重庆,400041 |
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| 摘 要： | 长期以来,地下洞室围岩的稳定性一直是大家关心的问题.现阶段,研究者多采用有限元法计算的应力、位移和塑性区大小来判断围岩的稳定性.事实上,以这样的方法来判断围岩的稳定性有很大的随意性,因为位移、塑性区大小与围岩稳定性没有严格的定量关系,而且随诸多因素改变.笔者尝试将极限分析法应用到岩质隧洞围岩稳定性分析中并提出计算隧洞剪切与拉裂安全系数的方法,由此求得潜在破裂面和安全系数,评价岩质隧洞稳定性和设计合理性.另外,笔者提出了各类隧洞岩体的稳定性标志并且依据安全系数来反推岩体的强度参数,从而使各类围岩强度参数值更接近实际.
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| 关 键 词： | 地下洞室 稳定性 安全系数 强度参数 FLAC3D |
Analysis on Stability for the Surrounding Rock of Tunnel and Exploring the Strength Parameters |
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| YANG Zhen,ZHENG Yingren,ZHANG Hong,WANG Qianyuan,SONG Yakun. Analysis on Stability for the Surrounding Rock of Tunnel and Exploring the Strength Parameters[J]. Chinese Journal of Underground Space and Engineering, 2009, 5(2) |
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| Authors: | YANG Zhen ZHENG Yingren ZHANG Hong WANG Qianyuan SONG Yakun |
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| Affiliation: | 1.College of Scinece;Qingdao Technological University;Qingdao 266033;P.R.China;2.Department of Civil Engineering;Logistical Engineering University;Chongqing 400041;P.R.China |
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| Abstract: | For a long time,there is a concern about the stability for the surrounding rock of underground opening.Nowadays,many researchers judge the stability for the surrounding rock of underground opening through stress,displacement and plastic zone of the rock calculated by finite element method.In fact,it is questionable to judge the stability for the surrounding rock by this way,and there is no rational connection between the displacement,plastic zone and the stability of the surrounding rock changed due to many... |
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| Keywords: | FLAC3D |
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