| 考虑桩-土相互作用的粘弹性土中管桩的纵向动力阻抗分析 |
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| 引用本文： | 骆文和,闫启方.考虑桩-土相互作用的粘弹性土中管桩的纵向动力阻抗分析[J].昆明理工大学学报(理工版),2010,35(5):28-32,36. |
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| 作者姓名： | 骆文和 闫启方 |
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| 作者单位： | [1]河南万达路桥集团有限公司,河南信阳464000 [2]信阳师范学院土木工程学院,河南信阳464000 |
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| 基金项目： | 河南省自然科学基金项目，信阳师范学院2009年度青年基金项目 |
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| 摘 要： | 在考虑三维波动的条件下,利用分离变量法求解了管桩桩周和桩芯粘弹性土层的竖向振动,对粘弹性土层中弹性端承摩擦管桩与土层的耦合振动问题进行了研究,得到了粘弹性土层中管桩的复刚度和桩顶导纳.讨论了桩周土和桩芯土剪切模量比、粘滞阻尼系数比和管桩内外半径比对管桩竖向动力阻抗的影响.
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| 关 键 词： | 分离变量法 纵向振动 动力阻抗 粘弹性 |
Vertical Dynamic Impedance of Pipe Pile in Viscoelastic Soil Considering Soil-Pile Interaction |
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| LUO Wen-he,YAN Qi-fang.Vertical Dynamic Impedance of Pipe Pile in Viscoelastic Soil Considering Soil-Pile Interaction[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2010,35(5):28-32,36. |
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| Authors: | LUO Wen-he YAN Qi-fang |
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| Affiliation: | 1.Henan Wanda Road and Bridge Group Co.Ltd.,Xinyang,Henan 464000,China;2.School of Civil Engineering,Xinyang Normal College,Xinyang,Henan 20072,China) |
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| Abstract: | Considering the three-dimensional wave effect of the soil-pile,the vertical vibrations of soil inside and outside the pile are solved by the method of separation variables.The coupled vibration of elastic end-fixed pipe pile in viscoelastic soil is then investigated.The complex stiffness and admittance at the pipe pile head are thus obtained.The influence of the shear modulus ratio,viscous damping coefficients ratio and ratio of inner and outer radius on the vertical dynamic impedance of pipe pile in viscoelastic soil are also discussed. |
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| Keywords: | method of separation variables vertical vibration dynamic impedance viscoelastic |
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