铁道科学与工程学报2017，Vol.14Issue(5)：928-934,7.
群桩-土相互作用动力阻抗的简化有限元计算
Simplified finite element calculation for dynamic impedance of pile-soil interaction
摘要
Abstract
A simplified finite element method for pile-soil dynamic interaction was provided. Combined with dynamic Winkler model in the frequency domain, the dynamic impedance of the spring-dashpot associated with pile-soil attributes was derived. The results of the simplified method based on the Gazetas-Dobry theory were compared. It is shown that the dynamic impedance by the present method agrees well with the results given by the G-D method. A complex model for pile groups was established with the present method, and a dynamic analysis was performed under different pile-soil conditions. The results show the present method can be applied practically to the engineering pile-soil cases and proposes a new way to the dynamic impedance calculation of pile-soil interaction.关键词
群桩-土相互作用/弹-阻单元/动力阻抗/简化有限元法Key words
pile-soil dynamic interaction/spring-dashpot element/dynamic impedance/simplified finite element method分类
建筑与水利引用本文复制引用
熊辉,江雅丰,李柃..群桩-土相互作用动力阻抗的简化有限元计算[J].铁道科学与工程学报,2017,14(5):928-934,7.基金项目
教育部新世纪优秀人才支持计划资助项目(NCET-13-190) （NCET-13-190）
湖南省科技计划资助项目(2013FJ4214) （2013FJ4214）
