筒承式风机基础设计分析
Design and Analysis of the Tube-supported Wind Turbine Foundation
常显勇 1李辉 1石继兵 1杨富程1
作者信息
- 1. 四川电力设计咨询有限责任公司 成都 610041
- 折叠
摘要
山区复杂地形风电场工程,在保证边坡稳定和风机运行安全的前提条件下,为减少开挖工程量,实现对环境的最少破坏,提出了筒承式这一新型风机基础结构形式.本文研究了筒承式风机基础概念设计与受力特点,基于CFD技术精细化分析了筒承式风机基础上侧边坡高差影响,研究了筒承式风机基础主要控制标准及荷载,采用有限元分析方法进行结构承载力分析,提出了施工期间按基础强度分段施工的方法.按照强度折减系数法等方法研究基础与岩土地基协同作用与变形.经对比分析,筒承式风机基础和风机平台综合效益明显.
Abstract
For wind turbines situated in complex mountainous terrain,minimizing excavation work,environ-mental impact,and ensuring slope stability and turbine safety are critical objectives.To address these challen-ges,a novel type of foundation,the tube-supported foundation,is proposed.This paper investigates the concep-tual design and stress characteristics of this innovative foundation.The influence of the side slope height differ-ence on the foundation is analyzed in detail based on the Computational Fluid Dynamics(CFD)method.The main control standards and loads of the foundation are studied.The finite element analysis method is used to an-alyze the structural bearing capacity,and a segmented construction method based on foundation strength is pro-posed.The interaction and deformation of the tube-supported foundation and the underlying bedrock are studied using the strength reduction coefficient method.Comparative analysis indicates that the comprehensive benefits of the tube-supported foundation and wind turbine platform are obvious.
关键词
风机基础/筒承式/筒壁/有限元分析/地基基础共同作用Key words
Wind turbine foundation/Tube-supported/Silo wall/Finite element analysis method/Subsoil and foundation interaction analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据