| 软土地铁车站结构及隧道的三维地震响应分析 |
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| 引用本文： | 王国波,马险峰,杨林德.软土地铁车站结构及隧道的三维地震响应分析[J].岩土力学,2009,30(8):2523-2528. |
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| 作者姓名： | 王国波 马险峰 杨林德 |
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| 作者单位： | 1. 武汉理工大学 土木工程与建筑学院，武汉 430070；2. 同济大学 岩土及地下工程教育部重点实验室，上海 200092； 3. 同济大学 地下建筑与工程系，上海 200092 |
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| 摘 要： | 建立了软土地铁车站结构及相邻隧道的三维计算模型，研究了其三维地震响应规律，确定了结构的薄弱部位及地震荷载引起结构内力的增幅，分析了隧道对车站结构内力的影响。研究表明：①在距离车站结构端墙1.5倍车站结构横向宽度的横截面，可按平面应变问题分析；②车站结构受力较大的部位有：上柱上端与板结合处、底板跨边与侧墙结合处、底板中跨跨中及车站结构的前端墙；③地震荷载对柱端弯矩的影响最大；④区间隧道的存在削弱了车站结构前后端墙的整体抗震性能。研究成果可为地铁车站结构及隧道的抗震设计提供参考。
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| 关 键 词： | 软土 地铁车站结构 隧道 三维计算模型 地震响应 |
| 收稿时间： | 2008-02-18 |
Three-dimensional seismic response analysis of metro station structures and tunnels in soft soil |
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| WANG Guo-bo,MA Xian-feng,YANG Lin-de.Three-dimensional seismic response analysis of metro station structures and tunnels in soft soil[J].Rock and Soil Mechanics,2009,30(8):2523-2528. |
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| Authors: | WANG Guo-bo MA Xian-feng YANG Lin-de |
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| Institution: | 1. School of Civil Engineering and Architecture，Wuhan University of Technology, Wuhan 430070, China; 2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 3. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | A three-dimensional calculation model of metro station structure and tunnels in soft soil is established; and their three-dimensional seismic responses are studied; and the unsubstantial parts of structures are determined; and the amplitude of inner forces caused by seismic waves are obtained; and the influence of tunnel on station structures is analyzed. Conclusions drawn from calculation results are as follows: (1) the section whose position is 1.5 times of width of station structure away from the end walls can be analyzed by the assumption of plane strain; (2) the disadvantageous parts of station structures include the above end of upper column, the conjoint part of sidewall and backplane, the mid-span of backplane and their conjuntion of front wall of station structure and tunnel; (3) seismic load has maximum effect on the moment of column; (4) the global aseismatic ability of front and behind walls of station structure will be weakened because of the existence of tunnel. The research results can provide references for seismic design of metro station structure and interzone tunnel. |
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| Keywords: | soft soil metro station structure tunnel three-dimensional calculation model seismic response |
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