| 浅埋暗挖地铁车站管棚的数值模拟及其加固效果分析 |
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| 引用本文： | 郭衍敬,房倩,李兵. 浅埋暗挖地铁车站管棚的数值模拟及其加固效果分析[J]. 北京工业大学学报, 2010, 36(1): 40-45 |
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| 作者姓名： | 郭衍敬 房倩 李兵 |
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| 作者单位： | 山东科技大学土木建筑学院,青岛,266510;中铁二十二局集团有限公司,北京,100043;北京交通大学隧道及地下工程教育部工程研究中心,北京,100044 |
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| 基金项目： | 国家“八六三”计划资助项目(2006AA11Z119) |
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| 摘 要： | 以北京地铁十号线黄庄站126 m超前大管棚一次性施作作为研究背景,在对管棚作用效果和作用机理分析的基础上,比较了现有管棚计算模型的优劣,提出了在数值计算中采用桩单元模拟管棚的思路;对车站导洞施工过程中管棚变形的动态过程以及管棚注浆和管棚直径对地表沉降的控制效果进行了分析研究.监测数据表明:北京地铁十号线黄庄站管棚施作后,四导洞开挖完成后地表沉降控制在30 mm左右,与四号线黄庄站四导洞完成后地表80 mm的沉降值相比大大减小,起到了良好的控制作用.
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| 关 键 词： | 管棚 浅埋暗挖 桩单元 地层变形 |
Reinforcement Mechanism and Mechanical Analysis for Pipe Roof Support Used in Subway Station With Shallow Tunnel Construction Method |
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| GUO Yan-jing,FANG Qian,LI Ring. Reinforcement Mechanism and Mechanical Analysis for Pipe Roof Support Used in Subway Station With Shallow Tunnel Construction Method[J]. Journal of Beijing Polytechnic University, 2010, 36(1): 40-45 |
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| Authors: | GUO Yan-jing FANG Qian LI Ring |
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| Abstract: | According to engineering practice in Beijing metro line 10 Huangzhuang subway station 126m advance pipe roof was used,the reinforcement mechanism for pipe roof is studied.Advantages and disadvantages for the existing pipe roof calculation models are compared and improved pipe roof calculation model is put forward.With this model the dynamic process for pipe roof deformation and the impact factors for pipe roof in ground settlement control are studied.Monitoring data indicated that without pipe roof ground s... |
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| Keywords: | pipe roof shallow tunnel construction method pile element stratum deformation |
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