| 海底隧道稳定性分析 |
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| 引用本文： | 王建新,王思敬,王在泉,孙亮.海底隧道稳定性分析[J].工程勘察,2008(2). |
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| 作者姓名： | 王建新 王思敬 王在泉 孙亮 |
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| 作者单位： | 清华大学水利水电工程系;青岛理工大学理学院; |
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| 摘 要： | 本文采用有限元极限分析法分析了海底隧道的整体稳定性与存在局部破碎带下的整体稳定性。以某海底隧道为例,计算表明隧道整体是安全的。当存在局部破碎带时,必须做好破碎带的超前注浆堵水加固,以减少其渗水量,并对破碎带进行局部加固;计算还表明,有局部破碎带时,隧道安全度降低,破碎带越宽,堵水圈厚度越小,安全系数越小;隧道倾斜破碎带较垂直破碎带安全系数小。
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| 关 键 词： | 有限元极限分析法 海底隧道 稳定性 安全系数 |
The Analysis of the Stability of the Subsea Tunnels |
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| Wang Jianxin et al..The Analysis of the Stability of the Subsea Tunnels[J].Geotechnical Investigation & Surveying,2008(2). |
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| Authors: | Wang Jianxin |
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| Abstract: | The paper analyses the stability of subsea tunnel with the integrity surrounding rock and the fault-rupture zone in part surrounding rock,through limit analysis by finite element method. We analysis a subsea tunnel,the results show that the tunnel is safe for the integrity surrounding rock,but the fault-rupture zone decreases the stability of tunnel.So the advanced grouting and drainage must be done to the fault-rupture zone in order to reduce the water seepage.The wider of fault-rupture zone,the smaller sa... |
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| Keywords: | limit analysis by finite element method subsea tunnel stability safety factor |
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