| 承台底地基土脱空后桩与桩间土的共同工作 |
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| 引用本文： | 宋功河,王永祥.承台底地基土脱空后桩与桩间土的共同工作[J].华东交通大学学报,2009,26(2):42-46. |
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| 作者姓名： | 宋功河 王永祥 |
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| 作者单位： | 华东交通大学,土木建筑学院,江西,南昌,330013 |
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| 摘 要： | 建立了脱空量变形计算模型，进行了桩基承台下桩间土脱空量的计算，在脱空发生时，对桩承台与承台底地基土再接触后的受力机理和变形特点进行了分析，建立了桩与桩间土共同工作的必要条件。通过理论分析，推导出桩间土参与共同工作分担上部荷载的定量表达式。结果表明，按此理论设计和布桩可取得较好的经济效果。
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| 关 键 词： | 脱空量 桩尖刺入量 桩与桩间土共同工作 压缩变形 |
Cooperation between Piles and Soils after the Low Side of the Pile Cap Separating from the Earth |
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| SONG Gong-he,WANG Yong-xiang.Cooperation between Piles and Soils after the Low Side of the Pile Cap Separating from the Earth[J].Journal of East China Jiaotong University,2009,26(2):42-46. |
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| Authors: | SONG Gong-he WANG Yong-xiang |
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| Institution: | School of Civil Engineering and Architecture;East China Jiaotong University;Nanchang 330013;China |
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| Abstract: | The paper presents a formula of separate deformation quantity between the low side of pile cap and earth,and calculates the separate deformation quantity between piles-group and earth,and analyzes the mechanic principle and characteristics of deformation when pile cap gets in touch with earth once again.Finally,the paper represents some necessary conditions of cooperative working between pile-group and earth,and infers theoretically quantitative formula of bearing upper loads in cooperation.Better economic ... |
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| Keywords: | separate quantity penetrating quantity of pile foot cooperative working between pile and soil deformation |
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