| 邻近运营地铁车站基坑开挖土层位移特性分析 |
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| 引用本文： | 谢秀栋,刘国彬,李志高,郭智杰. 邻近运营地铁车站基坑开挖土层位移特性分析[J]. 地下空间与工程学报, 2007, 3(4): 742-744,757 |
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| 作者姓名： | 谢秀栋 刘国彬 李志高 郭智杰 |
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| 作者单位： | 同济大学,地下建筑与工程系,上海,200092;同济大学,地下建筑与工程系,上海,200092;同济大学,地下建筑与工程系,上海,200092;同济大学,地下建筑与工程系,上海,200092 |
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| 摘 要： | 在邻近运营地铁车站进行基坑开挖,由于地铁车站的刚度大,车站-土-基坑围护结构相互作用,土层位移表现出与一般基坑不同的特点.采用FLAC 2D程序进行数值模拟,分析在车站和基坑间距不同的情况下,基坑周围土层的变形特点、变形规律,并与没有地铁车站时的位移场做比较.结果表明车站附近的土层的水平位移明显减小,基坑离车站越近,其值越小;土层有向上移动趋势,靠近基坑的位移值较大,且基坑离车站越近、基坑开挖深度越大,竖向位移越明显.
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| 关 键 词： | 位移特性 基坑开挖 地铁车站 LAC |
| 文章编号： | 1673-0836（2007）04-0742-03 |
| 修稿时间： | 2006-09-07 |
Anal Msis of Soil Layers Displacement Characteristics in Foundation Pit Adjacent to Subway Station |
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| XIE Xiu-dong,LIU Guo-bin,LI Zhi-gao,GUO Zhi-jie. Anal Msis of Soil Layers Displacement Characteristics in Foundation Pit Adjacent to Subway Station[J]. Chinese Journal of Underground Space and Engineering, 2007, 3(4): 742-744,757 |
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| Authors: | XIE Xiu-dong LIU Guo-bin LI Zhi-gao GUO Zhi-jie |
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| Affiliation: | Department of Geotechnieal Engineering, Tongji University, Shanghai 200092, P. R. China |
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| Abstract: | During the excavation of foundation pit adjacent to subway station, the soil layers displacement takes on different characteristics due to the big stiffness of subway station, and station-soil-structure interaction. In the case of different distance between station and foundation pit, using FLAC^2D program to analyze the characteristics and rides of soil layers displacement and the results are compared with that without station. The results show that the horizontal displacements of soil layers are diminished and those of soil layers are raised, and the closer the spacing and the deeper the foundation pit the vertical displacement is more obvious. |
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| Keywords: | displacement characteristics deep - excavation subway station FLAC |
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