期刊
COMPUTERS AND GEOTECHNICS
卷 150, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2022.104894
关键词
Pile vibration; Vertical impedance; Analytical solution; Layered soils; Fictitious soil pile model
类别
资金
- National Key Research and Development Program of China [2021YFB2601102]
- National Natural Science Foundation of China [52178315, 52108326, 51878109]
Based on the dynamic Winkler model and fictitious soil pile model, this paper establishes a more rigorous analytical model for investigating the vertical vibration problems of floating piles. Extensive parametric analyses show that the proposed model provides a wider range and more rigorous application for floating piles embedded in layered and limited thickness soils.
Based on the dynamic Winkler model and fictitious soil pile model to consider the relative sliding at the pile-soil interface and the propagation effect of soil beneath the pile toe, respectively, a more rigorous analytical model for the vertical vibration problems of a floating pile is established. The general solution for the displacement of soil is derived by combining the Laplace transform and variable separation methods. Then, the vertical dynamic solution of the floating pile is obtained by introducing the pile-soil interface condition and transfer function recursion method. Furthermore, extensive parametric analyses are performed to investigate the effects of the stiffness coefficient for the dynamic Winkler model, the length of the fictitious soil pile, and the inhomogeneity of the soils and pile on the vertical vibration for the floating pile. This indicates that the proposed analytical model provides a wider range and more rigorous application for the vertical vibration problems of floating piles embedded in layered and limited thickness soils. Moreover, the reduced form of the obtained solution can also be applied to investigate the corresponding vibration problems of end-bearing piles.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据