| 隧道地震响应振动台实验及动力时程分析 |
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| 引用本文： | 李林,何川,耿萍,吴川.隧道地震响应振动台实验及动力时程分析[J].华中科技大学学报(城市科学版),2011,28(3). |
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| 作者姓名： | 李林 何川 耿萍 吴川 |
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| 作者单位： | 西南交通大学土木工程学院,四川成都,610031 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)(2010CB732105); 国家杰出青年科学基金(50925830); |
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| 摘 要： | 本文主要通过数值模拟和大型振动台模型试验对浅埋隧道在不同围岩类型条件下的地震响应特性进行了研究.结果表明:隧道围岩类型对隧道地震响应特性有明显的影响,围岩越好,其抗震性越好；围岩加速度随着高程的增加有明显的放大效应,围岩越差,加速度放大效应越明显；共轭45°方向为较大内力值分布,而隧道拱顶、拱底和边墙内力值却相对较小,内力量值与隧道围岩类型呈反向变化；振动台模型试验和数值模拟结果有较好的吻合性.以上成果对于合理认识浅埋隧道的地震响应特征具有重要意义,可为类似工程提供借鉴.
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| 关 键 词： | 隧道工程 振动台模型试验 地震时程分析 隧道地震响应特性 |
Research on Shaking Table Model Tests and Seismic Time History Analysis for Tunnel |
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| LI Lin,HE Chuan,GENG Ping,WU Chuan.Research on Shaking Table Model Tests and Seismic Time History Analysis for Tunnel[J].Journal of Huazhong University of Science and Technology,2011,28(3). |
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| Authors: | LI Lin HE Chuan GENG Ping WU Chuan |
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| Affiliation: | LI Lin,HE Chuan,GENG Ping,WU Chuan(School of Civil Engineering,Southwest Jiaotong University,Chengdu 61 0031,China) |
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| Abstract: | By mainly using the numerical simulation for shallow tunnel,this paper made stu dies on the seismic response character in different types of surrounding rock co nditions,while we check the results according to large-shaking table model test.The results indicated that the type of surrounding rock have great effect on t he seismic response character,the better surrounding rock condition are,the mo re excellent the ability of resisting to shock would be.Otherwise,the accelera tion have obviously scale-effect w... |
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| Keywords: | tunneling engineering shaking table model test seismic time history analysis the seismic response character of tunnel |
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