| 桩顶荷载影响负摩阻力的现场试验与数值模拟 |
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| 引用本文： | 夏力农,杨秀竹.桩顶荷载影响负摩阻力的现场试验与数值模拟[J].铁道科学与工程学报,2008,5(5). |
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| 作者姓名： | 夏力农 杨秀竹 |
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| 作者单位： | [1]长沙学院土木工程系,湖南长沙410003 [2]中南大学土木建筑学院,湖南长沙411075 |
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| 基金项目： | 湖南省科技厅科技攻关项目，湖南省自然科学基金 |
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| 摘 要： | 进行了桩顶荷载对于负摩阻力性状影响的现场试验.针对现场试验,进行了数值模拟.现场试验和数值模拟结果都表明:数值模拟结果与实测结果较吻合;与没有桩顶荷载时相比,有桩顶荷载作用时负摩阻力引起的附加沉降较大,中性点的位置较高,附加轴力明显减小;随着桩顶荷载的增加,沉降增加、中性点上移和附加轴力减小的趋势都很明显.结果表明,桩顶荷载对负摩阻力性状的影响是有规律的.
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| 关 键 词： | 桩顶荷载 负摩阻力 数值模拟 |
Field tests and numerical simulation of working load influences on negative skin friction behaviors of piles |
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| XIA Li-nong,YANG Xiu-zhu.Field tests and numerical simulation of working load influences on negative skin friction behaviors of piles[J].Journal of Railway Science and Engineering,2008,5(5). |
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| Authors: | XIA Li-nong YANG Xiu-zhu |
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| Institution: | XIA Li-nong1,YANG Xiu-zhu2(1.Department of Civil Engineering,Changsha University,Changsha 410003,China,2.School of Civil , Architectural Engineering,Central South University,Changsha 410075,China) |
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| Abstract: | Field tests of influences of working load on negative skin friction behaviors were introduced.According to the field test condition,the corresponding numerical simulation has been carried on.The field test and the numerical simulation results indicat that,the numerical simulation results and the field test results are in accordance well.The ad-ditional settlement is bigger and the neutral point position is higher,the additional axial force reduces obviously in piles with working load compared with that in p... |
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| Keywords: | working load negative skin friction numerical simulation |
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