| 有效应力迭代算法计算桩基负摩擦力 |
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| 引用本文： | 肖俊华,袁聚云,亓兴军. 有效应力迭代算法计算桩基负摩擦力[J]. 山东建筑工程学院学报, 2006, 0(5) |
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| 作者姓名： | 肖俊华 袁聚云 亓兴军 |
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| 作者单位： | 同济大学地下建筑工程系，同济大学地下建筑工程系，山东建筑大学土木工程学院 上海200092，山东建筑大学土木工程学院，山东济南250101，上海200092，山东济南250101 |
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| 摘 要： | 采用有效应力迭代算法来确定中性点的位置和计算下拉荷载值,并通过一个实例来说明迭代试算的过程。通过对试算结果与实测结果的对比,说明有效应力迭代算法是一种简单实用的方法,可用于指导桩基础的设计。有效应力法计算出的轴力与实测值在中性点以上也存在着差异,原因在于有效应力迭代算法所假定的单位面积上的负摩擦力与实际情况存在差异。
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| 关 键 词： | 有效应力迭代法 中性点 负摩擦力 下拉荷载 实测值 |
The calculation of negative friction on pile foundation by effective stress iterative method |
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| XIAO Jun-hua. The calculation of negative friction on pile foundation by effective stress iterative method[J]. Journal of Shandong Institute of Architecture and Engineering, 2006, 0(5) |
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| Authors: | XIAO Jun-hua |
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| Affiliation: | XIAO Jun-hua~ |
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| Abstract: | The effective stress iterative method of estimating neutral point and downdrag on a single pile was presented in this paper.A case was introduced to illustrate the trial-and-error procedure.By comparing the calculation result with the field measured value,effective stress iterative method is verified to be simple and practical and can be used in pile foundation design.Axial force of pile above the neutral point calculated by the presented method have differences from field measured value.The main cause lies in that the assumed negative skin friction is different from that of the field. |
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| Keywords: | effective stress iterative method neutral point negative skin friction downdrag measured value |
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