Study on the Impact of Uneven Settlement on the Load-Bearing Performance of Wind Turbine Foundations with Embedded Ring
[Purposes]This paper aims to investigate the impact of uneven settlement on the load-bearing performance of wind turbine foundations with embedded ring.[Methods]Taking a 2.0 MW turbine with em-bedded ring in a wind farm in Hunan as an example,the Abaqus model was established.The normal opera-tion condition,extreme operation condition and fatigue condition load were applied on the top of the tower.The inclination value of the foundation was set,and the stress characteristics and distribution of the founda-tion were analyzed.[Findings]Under normal and fatigue conditions,uneven settlement minimally affects foundation performance.However,under extreme conditions,the uneven settlement of the foundation makes the stress distribution of the foundation concrete develop along the circumferential direction,which has a sig-nificant influence on the mechanical performance of the foundation.[Conclusions]Uneven settlement in-creases lateral displacement and overturning moments at the wind turbine tower top,detrimentally affecting concrete's structural capacity,especially in extreme conditions.Regular inspections are vital to ensure settle-ment remains within acceptable limits.
wind turbine foundationuneven settlementfinite element simulationstress distribution
万方数据
维普
