| 深基坑柔性叠加支护结构施工技术 |
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| 引用本文： | 严晓新,李宗明,黄延铮. 深基坑柔性叠加支护结构施工技术[J]. 施工技术, 2011, 40(23) |
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| 作者姓名： | 严晓新 李宗明 黄延铮 |
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| 作者单位： | 1. 华北水利水电学院土木与交通学院,河南郑州,450011
2. 中国建筑第七工程局有限公司,河南郑州,450004 |
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| 摘 要： | 随着社会市场经济的发展,大量的高层、超高层建筑以及地下工程不断涌现,距原有建筑物的间距越来越小,支护结构的造价急剧增加。针对深基坑地下连续墙、防渗帷幕及其之间土体组成的柔性叠加支护结构,使用有限元软件ANSYS分析模拟地下连续墙的受力和变形,并以不同内支撑方式作了多方案比较,在实际工程施工中及时进行信息采集,和计算结果相比较,并界定了使用该计算方法的边界条件。工程实践表明,该结构的受力和变形计算结果更符合工程实际,与传统计算方法相比,水平位移减少30%,从而降低支护造价20%左右。
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| 关 键 词： | 基坑 支护结构 地下连续墙 水平位移 监测 |
Construction Technology in the Supporting Structure with Flexible Superposition for Deep Foundation Excavation |
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| Yan Xiaoxin,Li Zongming,Huang Yanzheng. Construction Technology in the Supporting Structure with Flexible Superposition for Deep Foundation Excavation[J]. Construction Technology, 2011, 40(23) |
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| Authors: | Yan Xiaoxin Li Zongming Huang Yanzheng |
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| Affiliation: | Yan Xiaoxin1,Li Zongming1,Huang Yanzheng2(1.Civil and Traffic College,North China University of Water Resources and Electric Power,Zhengzhou,He'nan 450011,China,2.China Construction Seventh Engineering Division.Corp.Ltd.,He'nan 450004,China) |
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| Abstract: | As the developing of economic,many super high-rise and high-rise buildings and underground engineerings appear continuously,leading to a much smaller distance between existed buildings and a higher cost of supporting structure.Based on underground diaphragm wall and anti-seepage curtain for deep foundation excavation,the supporting structure with flexible superposition composed of soil between them,finite element analysis software ANSYS is used to analyze and simulate the stress and deformation condition of... |
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| Keywords: | foundation excavation supporting structure underground diaphragm walls horizontal displacement monitoring |
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