| 支撑体系支护参数对基坑支护效果的影响 |
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| 引用本文： | 李志宏,黄宏伟.支撑体系支护参数对基坑支护效果的影响[J].地下空间与工程学报,2007,3(Z1):1300-1304. |
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| 作者姓名： | 李志宏 黄宏伟 |
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| 作者单位： | 同济大学,地下建筑与工程系,上海,200092 |
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| 摘 要： | 某长条形基坑围护结构采用水泥土搅拌墙(SMW),设置两道钢支撑.在该支护方案的基础上,改变相邻支撑纵向间距与支撑的布置高度,对各支护方案下基坑分步开挖、结构支护的施工全过程进行三维数值模拟.通过对各支护方案的模拟,分析支撑轴力、基坑底部隆起、围护结构变形以及基坑周围地表沉降的变化,研究支撑体系支护参数对基坑支护效果的影响程度,可对类似工程的优化设计提供参考依据.
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| 关 键 词： | 基坑 支护参数 三维数值模拟 支护效果 |
| 文章编号： | 1673-0836(2007)07-1300-05 |
| 修稿时间： | 2007年8月10日 |
The Influence of Supporting Parameter of Supporting System on Excavation Supporting Effect |
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| LI Zhi-hong,HUANG Hong-wei.The Influence of Supporting Parameter of Supporting System on Excavation Supporting Effect[J].Chinese Journal of Underground Space and Engineering,2007,3(Z1):1300-1304. |
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| Authors: | LI Zhi-hong HUANG Hong-wei |
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| Abstract: | SMW retaining structure is applied and two steel supports are installed in a long strip excavation.Ac- cording to the original supporting scheme but with different longitudinal distance and location of the supports,the whole construction process of stepped excavation and support structure is simulated with 3D numerical method. Through simulating these cases above,the influencing degree of supporting parameters of supporting system on the supporting effect is researched by analyzing the changes of axial supporting forces,uplift of the excavation bottom,de- formation of SMW retaining structure,and ground settlement around the excavation.Simultaneously,the reference rule of optimal design is supplied for the similar engineering. |
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| Keywords: | excavation supporting parameter 3D numerical simulation supporting effect |
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