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地铁换乘车站基坑支撑轴力监测与数值模拟

张光建, 姚小波, 胡瑾

张光建, 姚小波, 胡瑾. 地铁换乘车站基坑支撑轴力监测与数值模拟[J]. 岩土工程学报, 2014, 36(zk2): 455-459. DOI: 10.11779/CJGE2014S2079
引用本文: 张光建, 姚小波, 胡瑾. 地铁换乘车站基坑支撑轴力监测与数值模拟[J]. 岩土工程学报, 2014, 36(zk2): 455-459. DOI: 10.11779/CJGE2014S2079
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ZHANG Guang-jian, YAO Xiao-bo, HU Jin. Monitoring and numerical simulation of axial forces of struts for foundation pit of a metro transfer station[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 455-459. DOI: 10.11779/CJGE2014S2079
Citation: ZHANG Guang-jian, YAO Xiao-bo, HU Jin. Monitoring and numerical simulation of axial forces of struts for foundation pit of a metro transfer station[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 455-459. DOI: 10.11779/CJGE2014S2079
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地铁换乘车站基坑支撑轴力监测与数值模拟  English Version

  • 中冶集团武汉勘察研究院有限公司,湖北 武汉430080

详细信息
    作者简介:

    张光建(1987- ),男,硕士,助理工程师,主要从事地基处理与基坑工程的设计工作。E-mail: zhanggj546@126.com。

Monitoring and numerical simulation of axial forces of struts for foundation pit of a metro transfer station

  • Wuhan Surveying-geotechnical Research Institute Co., Ltd. of MCC, Wuhan 430080, China

摘要

    摘要
  • 摘要: 以某地铁换乘车站基坑为研究背景,研究基坑开挖过程中支撑轴力随基坑开挖时间的变化规律。建立三维有限元模型对地铁车站深基坑开挖过程进行模拟计算,将获得的支撑轴力计算值与实测值进行了对比分析。结果表明：第四道钢筋混凝土支撑的支撑轴力最大,第五道和第六道钢支撑的设计偏于保守,支撑的拆除会对其相邻支撑产生很大影响。支撑轴力的计算值小于实测值,但其发展变化的趋势几乎一致。三维有限元模型能够较好的模拟异形基坑的开挖过程,可以为优化设计和施工提供有益的参考。
    Abstract: Based on the foundation pit project of a metro transfer station, the changing laws of the axial forces of struts with the excavation time are studied. A three-dimensional finite element model is established to numerically simulate the foundation pit of the metro station. The FEM and in-situ monitoring results of axial forces of struts are compared. The results show that the axial forces of the fourth concrete strut are the maximum, and the design values of the fifth and the sixth steel struts are conservative. Besides, the removal of a strut has a notable influence on its adjacent struts. The calculated results are less than the in-situ monitoring ones, but the trend of their changing laws is almost uniform. The three-dimensional finite element model can simulate the excavation process of abnormal foundation pits, and it can be used to provide reference for their design and construction.
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    • 参考文献(8)
  • [1] 杨有海, 武进广. 杭州地铁秋涛路车站深基坑支护结构性状分析[J]. 岩石力学与工程学报. 2008, 27(增刊2): 3386-3392. (YANG You-hai, WU Jin-guang. Analysis of retaining structures for deep foundation pit of qiutao road station in Hangzhou metro[J]. Chinese Journal of Rock Mechanics and Engineering. 2008, 27(S2): 3386-3392. (in Chinese))
    [2] 霍润科, 颜明圆, 宋战平. 地铁车站深基坑开挖监测与数值分析[J]. 铁道工程学报, 2011, 152(5): 81-85. (HUO Run-ke, YAN Ming-yuan, SONG Zhan-ping. The monitoring and numerical analysis of deep foundation in subway station[J]. Journal of Railway Engineering Society. 2011, 152(5): 81-85. (in Chinese))
    [3] 马文娟, 单红仙, 刘小丽, 等. 钢筋混凝土与钢管混合支撑体系的内力监测分析[J]. 工程地质学报, 2012, 20(增刊1): 697-702. (MA Wen-juan, SHAN Hong-xian, LIU Xiao-li, et al. Monitoring analysis of internal force for mixed-support structure of concrete support and steel support[J]. Journal of Engineering Geology, 2012, 20(S1): 697-702. (in Chinese))
    [4] 张忠苗, 房 凯, 刘兴旺, 等. 粉砂土地铁深基坑支撑轴力监测分析[J]. 岩土工程学报, 2010, 32(增刊1): 426-429. (ZHANG Zhong-miao, Fang Kai, LIU Xing-wang, et al. Monitoring analysis of axial forces of strut for deep foundation pits of subway station in silty sand[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(S1): 426-429. (in Chinese))
    [5] 陆培毅, 韩丽君, 于 勇. 基坑支护支撑温度应力的有限元分析[J]. 岩土力学, 2008, 29(5): 1290-1294. (LU Pei-yi, HAN Li-jun, YU Yong. Finite element analysis of temperature stress in strut of foundation pit[J]. Rock and Soil Mechanics. 2008, 29(5): 1290-1294. (in Chinese))
    [6] 叶万灵. 围护结构中钢筋混凝土支撑轴力和变形的研究[J]. 土木工程学报, 2000, 33(5): 83-87. (YE Wan-ling. Research on the axial force and deformation of reinforced concrete braces of support structures[J]. China Civil Engineering Journal, 2000, 33(5): 83-87. (in Chinese))
    [7] 李文峰. 对地铁基坑混凝土支撑轴力监测精确性的探讨[J]. 隧道建设, 2009, 29(4): 424-427. (LI Wen-feng. Discussion on monitoring accuracy of axial force of concrete bracing of metro foundation pit works[J]. Tunnel Construction, 2009, 29(4): 424-427. (in Chinese))
    [8] 叶真华, 黄 飘. 基坑支撑轴力实测值与理论计算值对比分析[J]. 岩土工程界, 2009, 12(3): 27-30. (YE Zhen-hua, HUANG Piao. Analysis of the measured and calculated axial forces of strut for foundation pit[J]. Geotechnical Engineering World, 2009, 12(3): 27-30. (in Chinese))
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出版历程
  • 收稿日期:  2014-07-27
  • 发布日期:  2014-07-27

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