| 某梁板支撑体系的深大基坑三维全过程分析 |
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| 引用本文： | 应宏伟,郭跃. 某梁板支撑体系的深大基坑三维全过程分析[J]. 岩土工程学报, 2007, 29(11): 1670-1675 |
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| 作者姓名： | 应宏伟 郭跃 |
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| 作者单位： | 浙江大学软弱土与环境土工教育部重点实验室；浙江省水利河口研究院 浙江杭州310027；浙江杭州310020； |
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| 摘 要： | 提出了考虑梁板复合支撑和分段施工效应的深大基坑支护结构三维全过程计算方法,编制了三维全过程分析有限元程序。以软土地基上某复杂深大基坑工程为例,详细计算了整个基坑支护结构、梁板复合支撑系统在施工全过程中的受力及变形性状。将计算结果与实测资料相比较,验证了本文方法的适用性,同时表明楼板复合支撑是控制深大基坑变形的有效方法之一。
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| 关 键 词： | 深基坑 梁板支撑 三维 过程分析 有限元 |
| 文章编号： | 1000-4548（2007）11-1670-06 |
| 修稿时间： | 2006-10-27 |
3D analysis on a deep beam-slab braced foundation pit considering effect of construction process |
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| YING Hong-wei,GUO Yue. 3D analysis on a deep beam-slab braced foundation pit considering effect of construction process[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(11): 1670-1675 |
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| Authors: | YING Hong-wei GUO Yue |
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| Affiliation: | 1.Key Laboratory on Soft Soil and Geo Environmental Engineering Ministry of Education Zhejiang University Hangzhou 310027 China 2.Zhejiang Institute of Hydraulics Estuary Hangzhou 310020 China |
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| Abstract: | A method to analyze behaviors of beam-slab braced foundation pits was proposed considering the effect of construction process.A 3D FEM program based on the model was developed.The method was used to analyze the deformation and internal forces in the retaining structure and the beam-slab bracing system of a deep foundation at different excavation stages.The analytical results were compared with the measured data.It was indicated that the suggested method could be used to simulate the excavation process of complex foundation pits.It was also shown that the beam-slab bracing system was an effective way to control the displacement of large and deep foundation pit. |
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| Keywords: | deep foundation pit beam-slab bracing system 3D process analysis FEM |
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