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| 地铁隧道群对地震动的放大作用 | |
| 引用本文： | 梁建文,李帆,刘中宪.地铁隧道群对地震动的放大作用[J].地震工程与工程振动,2011,31(2):31-39. |
| 作者姓名： | 梁建文 李帆 刘中宪 |
| 作者单位： | 1. 天津大学土木工程系,天津,300072 2. 天津大学土木工程系,天津,300072;河北工业大学土木工程学院,天津,300401 3. 天津大学土木工程系,天津,300072;天津城市建设学院土木工程系,天津,300384 |
| 基金项目： | 国家自然科学基金项目，天津市应用基础研究重点项目，教育部博士点基金项目 |
| 摘 要： | 本文采用有限元方法在时域内研究了基岩上均匀场地中隧道群对地震动的放大作用,分析了隧道间距、人射地震波频谱等因素对隧道群附近地表地震动反应谱的影响.研究表明,隧道群对地震动具有显著的放大作用,放大作用的大小与隧道间距和人射地震波频谱有着密切关系;隧道之间存在相互作用,加速度峰值的最大值多大于单隧道情况,且水平加速度峰值的... |
| 关 键 词： | 地铁隧道群 地震动 放大作用 反应谱 相互作用 |
Amplification of ground motion by metro tunnel group |
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| LIANG Jianwen,LI Fan,LIU Zhongxian.Amplification of ground motion by metro tunnel group[J].Earthquake Engineering and Engineering Vibration,2011,31(2):31-39. | |
| Authors: | LIANG Jianwen LI Fan LIU Zhongxian |
| Institution: | LIANG Jianwen1,LI Fan1,2,LIU Zhongxian1,3(1.Department of Civil Engineering,Tianjin University,Tianjin 300072,China,2.School of Civil Engineering,Hebei University of Technology,Tianjin 300401,3.Department of Civil Engineering,Tianjin Institute of Urban Construction,Tianjin 300384,China) |
| Abstract: | This paper investigates the amplification of ground motion in time domain by metro tunnel group in single layer on bedrock using finite element method,discusses the effects of distance between tunnels and spectra of incident seismic waves,etc.on the response spectra of surface ground motions near the tunnel group.It is shown that the tunnel group has significant amplification effect on the ground motion,and the amplitude of the amplification depends on the distance between tunnels and the spectra of inciden... |
| Keywords: | metro tunnel group ground motion amplification response spectrum interaction |
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