| 断层带处公路隧道横断面抗震分析 |
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| 引用本文： | 蒋华,蒋树屏,王晓雯,林义.断层带处公路隧道横断面抗震分析[J].隧道建设,2009,29(1):14-18. |
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| 作者姓名： | 蒋华 蒋树屏 王晓雯 林义 |
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| 作者单位： | 1. 重庆交通大学土木建筑学院2. 重庆交通科研设计院3. ,中铁西北科学研究院有限公司 |
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| 摘 要： | 嘎隆拉隧道是西藏扎墨公路的控制性工程，隧道处于高烈度地震区。根据扎墨公路嘎隆拉隧道地震安全性评价报告和地勘资料，运用Newmark隐式时间积分有限元法并采用黏弹性人工边界，对隧道穿越断层带时的衬砌结构进行了瞬态动力反应分析，通过计算得出拱顶、拱腰、拱脚和仰拱中部的位移时程曲线，并由位移评价了隧道稳定性。计算结果表明，衬砌在地震作用下，其内力增加有限，内力最多增加8.73%。
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| 关 键 词： | 公路隧道黏弹性人工边界阻尼位移时程内力抗震分析 |
| 收稿时间： | 2008-11-13 |
| 修稿时间： | 2008-12-23 |
Study on Transverse Seismic Response of Highway Tunnel in Fault Region |
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| JIANG Hua,JIANG Shuping,WANG Xiaowen,LIN Yi.Study on Transverse Seismic Response of Highway Tunnel in Fault Region[J].Tunnel Construction,2009,29(1):14-18. |
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| Authors: | JIANG Hua JIANG Shuping WANG Xiaowen LIN Yi |
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| Institution: | 1. Chongqing Jiaotong University2. Chongqing Communications Research and Design Institut3. Northwest Research Institute Co., Ltd. of C.R.E. |
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| Abstract: | Galongla tunnel,which is a key project of Zha-Mo highway,is located in highly seismic region.On basis of the seismic evaluation reports of the tunnel and the geological prospecting data,the authors make analysis on the transient dynamic response of the tunnel lining in fault region by means of Newmark's step-by-step implicit integration FEM method and artificial viscous-spring boundaries.By means of calculation,the authors obtain the diachronic displacement curves of the crown,arch waist,arch foot and the c... |
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| Keywords: | highway tunnel artificial viscous-spring boundaries damping diachronic displacement internal force seismic analysis |
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