Journal of Changshu Institute of TechnologyIssue(2)：65-71,78,8.
径向多圈层桩-土耦合振动模型研究
A Study of Vertical Vibration of Pile in Radial Heterogeneous Soil
摘要
Abstract
This paper makes a study of the pile-soil interaction model in radially heterogeneous soil, assuming the pile is vertical, elastic, uniform, and of circular cross-section. Moreover, it rests on elastic support and is subjected to vertical harmonic load. In addition, the soil around the pile is divided into three zones along the ra⁃dial orientation, which are considered as linear viscoelastic media with hysteretic type damping and rest on elas⁃tic support as well. First, the paper gives the dynamic equilibrium equations of three zones soil and solves the equations one by one. Then, the paper considers the interaction condition, constructs the equilibrium equation of pile, solves it, and gets some analytical or semi-analytical dynamic responses on the pile top in frequency do⁃main and time domain. Finally, from contrasting to the previous results, the paper proves that the present solu⁃tion is correct.关键词
桩土耦合作用/径向非均质/复刚度/解析解/纵向振动Key words
pile-soil interaction/radial heterogeneity/hysteretic type damping/complex stiffness/analytical so-lution/vertical vibration分类
交通工程引用本文复制引用
薛国强,张琳,周燕..径向多圈层桩-土耦合振动模型研究[J].Journal of Changshu Institute of Technology,2013,(2):65-71,78,8.基金项目
常熟市科技发展计划（社会发展）项目“河道淤泥在常熟地区市政工程中的应用研究” （）
