信阳师范学院学报（自然科学版）Issue(4)：614-618,5.DOI:10.3969/j.issn.1003-0972.2014.04.036
基于FDV模型的土体中部分埋入端承摩擦桩的水平动力阻抗
Lateral Dynamic Impedance of Partially Embedded End Bearing Friction Pile in Soil Described by Fractional Derivative Viscoelastic Model
摘要
Abstract
The dynamic interaction between pile and pile around soil was described by Winkler spring-damping, and the stiffness and damping coefficients of the pile around soil were obtained. By considering the continuous condi-tions of the embedded part and exposed part of pile, the lateral vibration of partially embedded end bearing friction pile in fractional derivative viscoelastic soil was solved with transfer matrix method, and the dynamic impedance at pile head were obtained. The influence of the order of fractional derivative, length of exposed part of pile and constitutive model parameters on the lateral vibration of pile were investigated. It is shown that the order of fractional derivative and the constitutive model parameters had a certain influence on the horizontal dynamic stiffness, but had little influence on the equivalent damping, and the length of exposed part of pile had great effect on the horizontal dynamic impedance of the pile.关键词
部分埋入桩/分数导数/黏弹性/水平动力阻抗Key words
partially embedded pile/fractional derivative/viscoelsatic/lateral dynamic impedance分类
建筑与水利引用本文复制引用
闫启方,余萍,陈晴晴..基于FDV模型的土体中部分埋入端承摩擦桩的水平动力阻抗[J].信阳师范学院学报（自然科学版）,2014,(4):614-618,5.基金项目
河南省科技发展计划项目（112300410105）；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）；信阳师范学院青年骨干教师资助计划（201107，2012007）；信阳师范学院校青年科研基金（2014-QN-063）；信阳师范学院大学生科研基金项目 （）
