信阳师范学院学报（自然科学版）Issue(2)：303-307,5.DOI:10.3969/j.issn.1003-0972.2015.02.035
基于连续介质力学模型的部分埋入单桩的纵向振动研究
Vertical Vibrations of Partially Embedded Single Pile Based on Continuous Mechanics Model
摘要
Abstract
Considering the continuity conditions and boundary conditions of the pile and soil, the vertical dynamic displacement of the soil was obtained based on continuous mechanics model, and established the vertical dynamic dif-ferential equations of the embedded part and exposed part of the pile.The vertical vibration of partially embedded sin-gle pile was solved by considering the continuity conditions and boundary conditions of the embedded part and exposed part of the pile, and the influence of the length of embedment of pile and the pile-soil modulus ratio on complex stiff-ness at pile head was investigated with numerical example.Through the discussion of parameters, it was concluded that the resonance of partially embedded single pile will occur under harmonic dynamic load, and the length of embedment of pile and the pile-soil modulus ratio have great effect on the complex stiffness of the pile at pile head, the fluctuation of the curves of complex stiffness of the pile at pile head varying with frequency will more seriously when the length of exposed part of the pile is longer.关键词
连续介质力学模型/部分埋入/纵向振动/复刚度/桩土模量比Key words
continuous mechanics model/partially embedded/vertical vibration/complex stiffness/pile-soil modulus ratio分类
建筑与水利引用本文复制引用
刘林超,冯震宇,闫盼,陈晴晴..基于连续介质力学模型的部分埋入单桩的纵向振动研究[J].信阳师范学院学报（自然科学版）,2015,(2):303-307,5.基金项目
河南省科技计划研究项目（142300410200，142102210065，122400450336）；河南省高等学校青年骨干教师资助计划项目（2013GGJS－121）；信阳师范学院重大课题预研项目（2013ZDYY19）；信阳师范学院青年科研基金项目（2014－QN－063）；信阳师范学院青年骨干教师资助计划（2012007）；信阳师范学院大学生科研基金项目 （）
