| 地铁及国铁荷载共同作用下地基土动力响应分析 |
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| 引用本文： | 陕耀,黄小翠. 地铁及国铁荷载共同作用下地基土动力响应分析[J]. 华东交通大学学报, 2008, 25(4): 19-24 |
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| 作者姓名： | 陕耀 黄小翠 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,201804;同济大学,道路与交通工程教育部重点实验室,上海,201804 |
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| 摘 要： | 结合南京地铁二号线东延线盾构隧道下穿宁芜铁路工程，研究地铁及铁路荷载共同作用下地基土动力响应．利用车辆-轨道耦合模型，计算轮轨垂向力．利用有限单元法分析地铁线路中心线下地基土和国铁路基面弹性变形、加速度随时间的变化规律，以及地基土中动应力分布规律．分析结果表明，在同样的加载条件下，地铁左线和右线地基土弹性变形及加速度随时间变化规律相似，动应力响应较大的区域主要分布在铁路基床表层、拱腰附近和轨枕下方土层．
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| 关 键 词： | 动力响应 地铁 铁路 轮轨力 |
Dynamic Response Analysis of Tunnel and Railway Foundation under Vibrating Load Induced by Train and Metro Vehicle |
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| SHAN Yao,HUANG Xiao-cui. Dynamic Response Analysis of Tunnel and Railway Foundation under Vibrating Load Induced by Train and Metro Vehicle[J]. Journal of East China Jiaotong University, 2008, 25(4): 19-24 |
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| Authors: | SHAN Yao HUANG Xiao-cui |
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| Affiliation: | SHAN Yao,HUANG Xiao-cui(Key Laboratory of Road , Traffic Engineering in Education Ministry,Tongji University,Shanghai 201804,China) |
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| Abstract: | Based on the project of Nanjing Subway Line 2 shield tunnel beneath the railway between Nanjing and Wuhu,dynamic response of tunnel and railway foundation under vibrating load induced by train and metro vehicle has been studied.The wheel-rail forces produced by the running of train and metro vehicle are calculated by wheel-rail coupling model.Using the dynamic finite element method,the law of subgrade deformation,acceleration and dynamic stress changed with time is found.The results indicate that under the ... |
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| Keywords: | dynamic response metro railway wheel-rail force |
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