| 紧邻多孔交叠隧道抗震性能研究 |
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| 引用本文： | 王国波,陈梁,徐海清,李朋.紧邻多孔交叠隧道抗震性能研究[J].岩土力学,2012,33(8):2483-2490. |
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| 作者姓名： | 王国波 陈梁 徐海清 李朋 |
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| 作者单位： | 1. 武汉理工大学 道路桥梁与结构工程湖北省重点实验室，武汉 430070；2. 北京城建设计研究总院有限公司，北京 100037； 3. 武汉地铁集团有限公司，武汉 430030；4. 武汉理工大学 土木工程与建筑学院，武汉 430070 |
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| 基金项目： | 2010年度湖北省自然科学基金项目(No.2010CDB01005);中央高校基本科研业务费专项资金项目(No.2010-IV-010) |
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| 摘 要： | 随着我国城市轨道交通建设的飞速发展，盾构隧道之间近距离相互穿越工程将会越来越多。武汉市轨道交通2号线与4号线在洪（洪山广场）中（中南路）区间为4孔紧邻交叠隧道。根据实际工程特点，将其简化为不同间距的4孔平行重叠和4孔垂直交叉隧道，分别建立其三维计算模型，分析了紧邻多孔交叠隧道的三维地震响应，其中考虑了不同地震波幅值、隧道间距、隧道空间位置、隧道管片横、纵向差异以及紧邻多孔盾构隧道间加固层的影响，从结构变形和受力两方面评价了其抗震性能。计算分析表明：（1）隧道间距对隧道地震响应影响不显著；（2）4孔垂直交叉隧道的抗震性能要优于4孔平行重叠隧道；（3）紧邻多孔交叠隧道具有良好的抗震性能，满足抗震要求。其研究成果可为今后类似工程的抗震初步设计提供参考。
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| 关 键 词： | 紧邻多孔交叠隧道 地震响应 抗震性能 管片刚度 加固层 |
| 收稿时间： | 2011-04-01 |
Study of seismic capability of adjacent overlapping multi-tunnels |
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| WANG Guo-bo
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CHEN Liang
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XU Hai-qing
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LI Peng.Study of seismic capability of adjacent overlapping multi-tunnels[J].Rock and Soil Mechanics,2012,33(8):2483-2490. |
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| Authors: | WANG Guo-bo CHEN Liang XU Hai-qing LI Peng |
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| Institution: | 1. Hubei Key Laboratory of Roadway Bridge & Structure Engineering, Wuhan University of Technology, Wuhan 430070, China; 2. Beijing Urban Engineering Design & Research Institute Co., Ltd., Beijing 100037, China; 3. Wuhan Metro Group Co., Ltd., Wuhan 430030, China; 4. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | More and more shield tunnels will crossing each other with very short distance with the rapid development of urban rail transit construction in China.There are four tunnels crossing each other between Hongshan Square Station and Zhongnan Road Station,which are the second line and the fourth line of Wuhan rail transit.The complicated multi-tunnels were simplified as four parallel tunnels and four perpendicular tunnels with different distances according to their practical characters.Three dimensional calculation models are established and their seismic responses are analyzed,in which the following aspects are considered: amplitudes seismic waves,tunnel net distance,tunnel space position,the difference of segment stiffness and the reinforced layer between tunnels.And then,their seismic capabilities are evaluated through two aspects: structure deformation and component internal forces.The analytical results show,(1) The net distances between tunnels have little influence on tunnel seismic responses;(2) The seismic capabilities of four perpendicular tunnels is superior to that of four parallel tunnels.(3) Adjacent overlapping multi-tunnels have good seismic capabilities and can satisfy seismic requirement.The research results can provide preliminary design for relevant practical engineering in future. |
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| Keywords: | adjacent overlapping multi-tunnels seismic response seismic capability segment stiffness reinforced layer |
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