| 杨伦,曹顺.列车动荷载作用下基坑变形规律研究[J].安徽建筑大学学报,2014,22(4):49-53 |
| 列车动荷载作用下基坑变形规律研究 |
| Research on The Deformation Law of Foundation Pit Under the Train Dynamic Load |
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| DOI：10.11921/j.issn.2095-8382.20140412 |
| 中文关键词: 动荷载 Midas/GTS 动力分析 基坑围护桩 |
| 英文关键词: dynamic load midas/GTS dynamic analysis foundation pit retaining piles |
| 基金项目:中央高校基本科研业务费专项资金资助项目（2012HGZY0024） |
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| 中文摘要: |
| 以南京地铁2号线项目作为背景，使用Midas/GTS建立三维模型，在列车动荷载的作用下对基坑模型进行了动力分析，预测当地铁运行时，列车动荷载对地表土体、基坑围护结构以及对地铁隧道的影响。通过数值模拟分析，研究结果表明列车动荷载对地表沉降以及基坑围护结构的受力与变形影响较小，且沉降趋于稳定，基坑不会发生失稳。 |
| 英文摘要: |
| Based on the Nangjing subway line project No.2, three-dimensional foundation pit model is established using Midas/GTS, to analysis its dynamic property under the dynamic load action of the train. Through the model, it can predict the influence of the dynamic load of the train to the surface soil, foundation pit retaining structure and metro tunnel. Through the numerical simulation analysis, Research results show that the influence of the train dynamic load to the ground surface subsidence and the deformation and internal force of the foundation pit structure is not very obviously,and settlement stabilized, the unstability of the foundation pit is not going to happen. |
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