| 深基坑排桩支护结构空间共同变形分析 |
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| 引用本文： | 赖冠宙,房营光,史宏彦.深基坑排桩支护结构空间共同变形分析[J].岩土力学,2007,28(8):1749-1752. |
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| 作者姓名： | 赖冠宙 房营光 史宏彦 |
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| 作者单位： | 1. 广东交通实业投资公司, 广州510101；2. 华南理工大学, 广州510641；3. 广东工业大学, 广州510640 |
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| 摘 要： | 考虑深基坑支护结构中圈梁、腰梁、排桩、支撑和地基的空间协同作用，建立了基于共同变形理论的有限元三维分析模型，明确了土压力及地基等效刚度的计算方法。结合工程实例，分析了带圈梁的排桩支护结构的内力、位移及土压力分布规律，并与二维平面分析结果进行了比较，验证了计算模型的合理性和三维分析的必要性。
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| 关 键 词： | 深基坑 排桩 圈梁 共同变形 空间效应 |
| 文章编号： | 1000-7598-（2007）08-1749-04 |
| 收稿时间： | 2005-08-24 |
| 修稿时间： | 2005-08-24 |
Spatial mutual deformation analysis method for row of piles of deep excavation |
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| LAI Guan-zhou,FANG Ying-guang,SHI Hong-yan.Spatial mutual deformation analysis method for row of piles of deep excavation[J].Rock and Soil Mechanics,2007,28(8):1749-1752. |
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| Authors: | LAI Guan-zhou FANG Ying-guang SHI Hong-yan |
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| Institution: | 1. Guangdong Communications Industry Company, Guangzhou 510101, China; 2. South China University of Technology, Guangzhou 510641, China; 3. Guangdong University of Technology, Guangzhou 510640, China |
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| Abstract: | Considering spatial mutual interaction and deformations among ring beam,middle beams,row of piles,braces and foundation soil in the deep excavation structure,the 3-D finite element analysis model is set up based on the mutual deformation theory;and specific method is settled to calculate the equivalent foundation stiffness and earth pressure.By analyzing an excavation case,the distribution rules of the inner forces,the deformations and earth pressures in the row of piles structure with ring beam are analyzed;and the results calculated with 3-D model and 2-D model are compared.Therefore,the reasonableness of calculating model and the necessity of 3-D analysis are verified. |
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| Keywords: | deep excavation row of piles ring beam mutual deformations spatial effect |
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