摘要
提出了一种风力发电技术改造时保留原基础的情况下更换上部设备的方案。由于荷载的变化和原基础环的损伤与缺陷,应重新设计连接新的风机塔筒和既有基础的连接方式,且原风机基础应进行相应加固改造。介绍了采用普通自锁锚杆和预应力自锁锚杆连接上部塔筒和基础的方案,并对比了两种方案的优劣。提出了增大基础和采用岩石预应力锚索加固基础的两种方案,并进行了对比。普通锚杆方案与岩石预应力锚索都能满足力学性能要求,但普通锚杆施工方便且经济性好;基础加固采用岩石预应力锚索方案则更加经济和环保。
This paper provides a solution to replaceing the upper equipment while retaining the foundation during the technical transformation of wind power generation.Due to load changes and the damage and defects of the original foundation ring,the connection method of connecting the new wind turbine tower and the existing foundation should be redesigned,and the original wind turbine generator tower foundation should be reinforced accordingly.This paper introduces the scheme of using common self-locking anchor rod and prestressed self-locking anchor rod to connect the upper tower and foundation,and compares the advantages and disadvantages of the two schemes.Two schemes for increasing the foundation and strengthening the foundation with prestressed rock bolts are proposed and compared.Both the ordinary bolt scheme and the prestressed bolt can meet the mechanical properties,but the ordinary bolt construction is convenient and economical.The foundation reinforcement using the prestressed rock anchor scheme is more economical and environment-friendly.
作者
廖杰洪
谭星舟
陈明祥
高作平
LIAO Jiehong;TAN Xingzhou;CHEN Mingxiang;GAO Zuoping(Wuda Jucheng Structure Co.,Ltd.,Wuhan 430233,China;School of Civil and Architectural Engineering,Wuhan University,Wuhan 430072,China)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2020年第S01期274-277,共4页
Engineering Journal of Wuhan University
关键词
自锁锚杆
风力发电
风机基础
预应力
self-locking anchor
wind power generation
wind turbine generator tower foundation
pre-stressed anchor
