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北京地铁车站地连墙支护结构受力变形特性研究

孙长军, 张顶立, 刘井学, 曹晓立

孙长军, 张顶立, 刘井学, 曹晓立. 北京地铁车站地连墙支护结构受力变形特性研究[J]. 岩土工程学报, 2015, 37(zk1): 78-83. DOI: 10.11779/CJGE2015S1016
引用本文: 孙长军, 张顶立, 刘井学, 曹晓立. 北京地铁车站地连墙支护结构受力变形特性研究[J]. 岩土工程学报, 2015, 37(zk1): 78-83. DOI: 10.11779/CJGE2015S1016
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SUN Chang-jun, ZHANG Ding-li, LIU Jing-xue, CAO Xiao-li. Mechanical and deformation characteristics of diaphragm wall system of Beijing metro station[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk1): 78-83. DOI: 10.11779/CJGE2015S1016
Citation: SUN Chang-jun, ZHANG Ding-li, LIU Jing-xue, CAO Xiao-li. Mechanical and deformation characteristics of diaphragm wall system of Beijing metro station[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk1): 78-83. DOI: 10.11779/CJGE2015S1016
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北京地铁车站地连墙支护结构受力变形特性研究  English Version

  • 1. 北京交通大学土木建筑工程学院,北京 100044; 2. 北京市轨道交通建设管理有限公司,北京 100068; 3. 北京迈达斯技术有限公司,北京 100044

基金项目: 国家科技支撑计划项目（2012BAJ01B03）; 中央高校基本; 科研业务费专项资助项目（2012JBZ013）
详细信息
    作者简介:

    孙长军(1970- ),男,博士研究生,高级工程师,项目中心副总经理,从事地铁工程技术及工程管理工作。

Mechanical and deformation characteristics of diaphragm wall system of Beijing metro station

  • 1. School of Civil Engineering, Beijing Jiao Tong University, Beijing 100044, China; 2. Beijing METRO Construction Administration Co., Ltd., Beijing 100068,China; 3. Beijing MIDAS Co., Ltd., Beijing 100044, China

摘要

    摘要
  • 摘要: 北京地铁14号线望京站采用地下连续墙+钢支撑以及地下连续墙+钢支撑+锚索混合支护体系。基于监测数据分析研究表明：基坑开挖对周围土体的影响水平范围上与基坑深度相当。钢支撑区段与混合支撑区段的沉降槽形态有差异,混合支撑区段地表沉降要大于钢支撑区段的地表沉降。在混合支撑区段,当基坑开挖较浅时,地下连续墙呈悬臂式位移分布,随着基坑开挖深度的增加,呈现抛物线型位移;第一层部分钢支撑轴力接近工作轴力,而下层锚索的拉力未能得到充分发挥。在钢支撑区段,地下连续墙体变形呈现刚性移动特点,钢支撑在预加轴力后经历了应力松弛然后轴力不断增长的过程,具有明显的时空效应。盾构井段角撑轴力变化比较平缓,波动幅度不大,结构空间效应明显。两种支撑体系均能满足围护结构变形控制指标要求。
    Abstract: Wangjing station of Beijing metro line No. 14 adopts the support system of underground diaphragm wall + steel support as well as diaphragm wall + steel support + anchor cable. The analysis of monitoring data shows that the influence range of excavation on the surrounding soil is close to the depth of foundation pit. The shapes of settling tank s of steel support section and mixed support section are different. The surface subsidence of mixed support section is larger than that of steel support section. In the mixed support section, when the excavation of foundation pit is shallow, the displacement of diaphragm wall is cantilever distributed. With the increase of excavation depth, the displacement is parabolic. The axial forces of first layer of steel strut are close to the work ones, and the tension of the lower anchor cable does not give full play. In the steel support section, the deformation of diaphragm wall presents rigid motion characteristics. The axial forces of steel support presenting stress relaxation and growing process have obvious effects of time and space. The axial forces of angle brace of steel support at shield well are quite gentle, the fluctuation is not large, and the spatial effects of structure are obvious. Two kinds of supporting system both can satisfy the requirements of deformation control indices of retaining structures.
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  • [1] PECK R B. Deep excavation and tunneling in soft ground[C]//Proceedings of the 7th International Conference on Soil Mechanics and Foundation Engineering. Mexico, 1969: 201-290.
    [2] CLOUGH G W, ANDO'ROURKE T D. Construction induced movements of in situ walls[C]//Proceedings, ASCE Conference on Design and Performance of Earth Retaining S tructures, Geotechnical Special Publication No. 25, ASCE. New York, 1990: 439-470.
    [3] ANDREW J W, YOUSSEF M A. Analysis of deep excavation in boston[J]. Journal of Geotechnical Engineering, 1993, 119(1): 69-89.
    [4] 徐中华, 王建华, 王卫东. 上海地区深基坑工程中地下连续墙的变形性状[J]. 土木工程学报, 2008, 41(8): 81-86. (XU Zhong-hua, WANG Jian-hua, WANG Wei-dong. Deformation behavior of diaphragm walls in deep excavations in Shanghai[J]. China Civil Engineering Journal, 2008, 41(8): 81-86. (in Chinese))
    [5] 徐中华, 王建华, 王卫东. 软土地区采用灌注桩围护的深基坑变形性状研究[J]. 岩土力学, 2009, 30(5): 1362-1366. (XU Zhong-hua, WANG Jian-hua, WANG Wei-dong. Deformation behavior of deep excavations retained by bored pile wall in soft soil[J]. Rock and Soil Mechanics, 2009, 30(5): 1362-1366. (in Chinese))
    [6] 丁克胜, 张宜佳. 天津地区超深基坑地下连续墙侧向变形与土压力关系研究[J]. 岩土工程学报, 2008, 30(10): 9-11. (DING Ke-sheng, ZHANG Yi-jia. Relationship between lateral deformation of diaphragm walls of deep foundation pits and earth pressure in Tianjin[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(10): 9-11. (in Chinese))
    [7] 朱瑶宏, 叶俊能, 刘晓虎, 等. 宁波轨道交通地下连续墙深基坑工程变形特性及控制研究[J]. 水文地质工程地质, 2012, 39(4): 66-73. (ZHU Yao-hong, YE Jun-neng, LIU Xiao-hu, et al. Deformation characteristics and control of foundation pits supporting with diaphragm wall in the Ningbo urban rail transit[J]. Hydrogeology & Engineering Geology, 2012, 39(4): 66-73. (in Chinese))
    [8] 王 卫. 成都地铁深基坑工程变形控制研究[D]. 成都: 成都理工大学, 2011. (WANG Wei. Study on deformation control of chengdu subway deep foundation pit[D]. Chengdu: Chengdu University of Technology, 2011. ( in Chinese))
    [9] 张明聚, 谢小春, 吴 立. 锚索与钢支撑混合支撑体系内力监测分析[J]. 岩土工程学报, 2010, 32(7): 483-488. (ZHANG Ming-ju, XIE Xiao-chun, WU Li. Monitoring analysis of internal force for mixed-support structure of anchor rope and steel support[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(7): 483-488. (in Chinese))
    [10] 刘 勇, 冯 志, 黄国超, 等. 北京地铁工程深基坑围护结构变形研究[J]. 地下空间与工程学报, 2009, 5(2): 329-335. (LIU Yong, FENG Zhi, HUANG Guo-chao, et al. The study in predicting the deformation of supporting structure for deep foundation pit of Beijing railway[J]. Chinese Journal of Underground Space and Engineering,2009, 5(2): 329-335. (in Chinese))
    [11] 安关峰, 宋二祥. 广州地铁琶州塔站及站后折返线工程基坑监测分析[J]. 岩土工程学报, 2005, 27(3): 333-337. (AN Guan-feng, SONG Er-xiang. The analysis of excavation monitoring for the Pazhouta subway station in Guangzhou[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(3): 333-337. (in Chinese))
    [12] 任建喜, 张引合, 张 琨, 等. 西安地铁车站深基坑变形规律FLAC模拟研究[J]. 铁道工程学报, 2011, 3: 90-93. (REN Jian-xi, ZHANG Yin-he, ZHANG Kun, et al. Research on the deformation law of deep foundation pit of metro station in Xi'an by FLAC simulation[J]. Journal of Railway Engineering Society, 2011, 3: 90-93. (in Chinese))
    [13] 杨有海, 王建军, 武进广, 等. 杭州地铁秋涛路车站深基坑信息化施工监测分析[J]. 岩土工程学报, 2008, 30(10): 1550-1554. (YANG You-hai, WANG Jian-jun, WU Jin-guang, et al. Informationized construction monitoring analysis of deep foundation pit for Qiutao Road Station of Hangzhou Metro[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(10): 1550-1554. (in Chinese))
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出版历程
  • 收稿日期:  2015-03-25
  • 发布日期:  2015-07-24

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