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| 断层破碎带隧道地震反应规律的数值模拟研究 | |
| 引用本文： | 朱长安,李海清,林国进,高波.断层破碎带隧道地震反应规律的数值模拟研究[J].公路,2012(4):254-259. |
| 作者姓名： | 朱长安 李海清 林国进 高波 |
| 作者单位： | 1. 四川省交通运输厅公路规划勘察设计研究院 成都市610041 2. 四川省交通运输厅高速公路管理局 成都市610041 3. 西南交通大学土木工程学院 成都市610031 |
| 摘 要： | 基于土—结构相互作用理论,对高烈度地震区跨断层破碎带公路隧道进行了抗震计算,分析得出了隧道结构各控制点的位移、加速度及应力响应的一般规律,同时分析了不同断层倾角对隧道纵向稳定性的影响。结果表明:在地震作用下,断层破碎带隧道拱部、墙脚为抗震薄弱位置;结构振动加速度波形与输入波形相似;断层倾角越小,隧道结构受力越不安全。这些结果可为地震区断层破碎带隧道结构设计提供参考。 |
| 关 键 词： | 高烈度地震区 公路隧道 断层破碎带 地震响应 |
A Study on Numerical Simulation of Seismic Response of Tunnel in Fault-Rupture Zone |
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| ZHU Chang-an , LI Hai-qing , LIN Guo-jin , Gao Bo.A Study on Numerical Simulation of Seismic Response of Tunnel in Fault-Rupture Zone[J].Highway,2012(4):254-259. | |
| Authors: | ZHU Chang-an LI Hai-qing LIN Guo-jin Gao Bo |
| Institution: | 1.Highway Planning,Survey,Design and Research Institute,Sichuan Provincial Transportation Department,Chengdu 610041,China;2.Expressway Administration,Sichuan Provincial Transportation Department,Chengdu 610041,China;3.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
| Abstract: | Based on soil-structure dynamic interaction theory,aseismatic calculation is used for the analysis of highway tunnel across fault-rupture zone in highly seismic area.The response of displace,acceleration and stress of structure are described.And the influence of fault dip on longitudinal stability of tunnel is also analyzed.Results show that the locations of crown of arch and the basement of sidewall are weak points of aseismic under the seismic action.The waveform of acceleration of structure is similar to the one input.The smaller the fault dip is,the more dangerous the tunnel structure is.These research results provide references for aseismic design of tunnel structure in fault-rupture zone in seismic area. |
| Keywords: | highly seismic area highway tunnel fault-rupture zone seismic response |
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