| 地铁隧道侧穿临近高层建筑施工工序优化研究 |
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| 引用本文： | 徐颖,陈建平,左昌群,张磊.地铁隧道侧穿临近高层建筑施工工序优化研究[J].施工技术,2011,40(20). |
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| 作者姓名： | 徐颖 陈建平 左昌群 张磊 |
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| 作者单位： | 中国地质大学工程学院,湖北武汉,430074 |
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| 基金项目： | 中央高校基本科研业务费专项资金(CUGL090212) |
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| 摘 要： | 以武汉地铁2号线洪山广场—中南路区间,双洞隧道近距离穿越高层建筑物群为例,采用Plaxis 3D有限元计算软件,模拟地铁双洞隧道矿山法开挖过程。分析隧道穿越建筑物前、侧穿过程以及离开后3个阶段建筑物的沉降、土层应力变化规律。并将不同施工方案引起的邻近高层建筑物结构沉降、应力重分布、塑性区分布以及倾斜情况进行对比分析。模拟结果表明,受隧道与建筑物的交互影响作用,先施工远离建筑物的隧洞施工的方案对邻近建筑影响最小,以此对隧道穿越高层建筑物的施工方案进行优化。
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| 关 键 词： | 隧道工程 地铁 高层建筑 有限元法 施工工序优化 |
Side-crossing Construction Optimization of Subway Tunnel Adjacent to Tall Buildings |
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| Xu Ying,Chen Jianping,Zuo Changqun,Zhang Lei.Side-crossing Construction Optimization of Subway Tunnel Adjacent to Tall Buildings[J].Construction Technology,2011,40(20). |
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| Authors: | Xu Ying Chen Jianping Zuo Changqun Zhang Lei |
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| Affiliation: | Xu Ying,Chen Jianping,Zuo Changqun,Zhang Lei(Faculty of Engineering,China University of Geoscience,Wuhan,Hubei 430074,China) |
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| Abstract: | Based on the two-track tunnels side-crossing adjacent tall building between Hongshan square and Zhongnan road in Wuhan Subway Line 2,the excavation process of two-track tunnels excavation with conventional method is simulated with finite element software of Plaxis 3D.In different construction stages,the variations of the foundation settlement and soil stress distribution between tunnels and the tall building are analyzed.The structure settlements,stress redistribution,plastic zone,angularity of each plan ar... |
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| Keywords: | tunnels subway tall buildings finite element method construction procedure optimization |
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