水利水电技术2017，Vol.48Issue(6)：60-65,6.DOI:10.13928/j.cnki.wrahe.2017.06.012
基于ANSYS的近海工程桩基础p-y曲线研究
ANSYS-based study on p-y curve of pile foundation for offshore project
李芬花 1邓丹平 1周子楠1
作者信息
- 1. 华北电力大学可再生能源学院,北京 102206
- 折叠
摘要
Abstract
As the volume of offshore wind turbine unit is huge,of which the pile foundation must bear the effects of the loads from the wind pressure of its upper structure,wave,self-weight,etc.,it is necessary to study the pile-soil interaction,so as to ensure the normal operation of the turbine unit.The laterally loaded pile is widely applied in the construction of offshore project,while the p-y curve method is an important method for analyzing the nonlinear pile-soil interaction of the laterally loaded pile.As the parameters of soil mass in various soil layers are different,the p-y curve formulas for clay and sand are different as well.The relevant parameters of soil mass are analyzed with the API standard method normally used in the construction of marine project in China and the relevant characteristics of the pile-soil interaction of composite layered foundation are analyzed through p-y curve,and then the simulative calculation of the pile-soil interaction is realized with the COMBIN39 unit in ANSYS;from which both the unit equivalent stress nephogram and the moment distribution nephogram are drawn.The calculation result shows that the anti-force in clay is much less than that in sand for the same displacements.Under the effects of wind and wave,the maximum bending moment of a single pile occurs near the water surface,while the maximum displacement occurs at the top of the platform and its maximum value can reach to 0.35 m.The study result can provide a reference basis for the safety protection of the pile foundation and platform of offshore project.关键词
p-y曲线/近海工程/桩土相互作用/海上风电Key words
p-y curve/offshore project/pile-soil interaction/offshore wind power分类
建筑与水利引用本文复制引用
李芬花,邓丹平,周子楠..基于ANSYS的近海工程桩基础p-y曲线研究[J].水利水电技术,2017,48(6):60-65,6.
