| 软土地基中桩筏基础沉降计算的探讨 |
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| 引用本文： | 刘杰,徐晨,戎贤.软土地基中桩筏基础沉降计算的探讨[J].河北工业大学学报,2004,33(5):108-112. |
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| 作者姓名： | 刘杰 徐晨 戎贤 |
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| 作者单位： | 天津大学,建筑工程学院,天津,300072;河北工业大学,土建学院,天津,300132 |
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| 摘 要： | 将群桩中的单桩的桩顶沉降分为桩身压缩和桩端位移分别计算，桩身压缩由实测方法或理论分析方法估算，桩端沉降根据分层总和法计算．将桩简化成弹簧作用在筏板下，弹簧刚度根据桩顶平均荷载和相应的沉降获得．最后，介绍了该方法在工程设计中的应用。
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| 关 键 词： | 桩筏基础 桩身压缩 桩端沉降 |
| 文章编号： | 1007-2373(2004)05-0108-05 |
| 修稿时间： | 2003年12月11 |
A Discussion to Calculate the Settlement of Pile-raft Foundation in Flexible Soil |
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| LIU Jie,XU Chen,RONG Xian
School of Civil Engineering and Architecture,Tianjin University,Tianjin ,China, School of Civil Engineering,Hebei University of Technology,Tianjin ,China.A Discussion to Calculate the Settlement of Pile-raft Foundation in Flexible Soil[J].Journal of Hebei University of Technology,2004,33(5):108-112. |
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| Authors: | LIU Jie XU Chen RONG Xian
School of Civil Engineering and Architecture Tianjin University Tianjin China School of Civil Engineering Hebei University of Technology Tianjin China |
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| Affiliation: | LIU Jie,XU Chen,RONG Xian
School of Civil Engineering and Architecture,Tianjin University,Tianjin 300072,China, School of Civil Engineering,Hebei University of Technology,Tianjin 300132,China |
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| Abstract: | The settlement of each pile in pile group consists of the compression of the pile and the settlement of the pile toe. The compression of pile can be determined by survey or estimated by theory method, The settlement of pile toe is calculated by layerwise summation method. The stiffness of each pile in pile group is determined by the average of loads acting on piles and the settlement of the pile top. Then the pile is modeled as a elastic spring with the stiffness of the corresponding pile. At the end of the paper, a case record is presented to show the effectiveness of this method. |
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| Keywords: | pile-raft foundation the compression of pile the settlement of pile toe |
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