水道港口2024，Vol.45Issue(2)：224-229,6.
海上风电大直径单桩冲刷演变规律大比尺模型试验研究
Study on scouring evolution around large-diameter piles for offshore wind power in large wave flume
摘要
Abstract
Under the action of waves,the KC number(Keulegan-Carpenter Number)is the main dimensionless parameter influencing local scour of offshore wind power monopiles.In this paper,a 1∶14 large-scale physical model test was used to study the variation of the local scour form,equilibrium scour depth and local scour volume of large-diameter piles for offshore wind power with the KC number under the action of irregular waves.The test results show that under the condition of small KC number(KC<6),when the KC number is less than 4,the scour mainly occurs on both sides of the single pile,and the scour depth is small;when the KC number exceeds 4,the shape of the scour pit changes from the sector to an oval,and the maximum scour depth increases significantly.In the case of large KC number,the calculation method of the balance scour depth is improved by redefining the KC number,and the relationship between the local balance scour volume and the KC number is given,which can provide a forecasting method for the redundancy during the single pile protection construction.关键词
KC数/不规则波/大水槽试验/平衡冲刷深度/局部冲刷方量Key words
KC number/irregular wave/large wave flume test/balance scour depth/local scour volume分类
交通工程引用本文复制引用
颜云,张二林,曾志煜,曾东..海上风电大直径单桩冲刷演变规律大比尺模型试验研究[J].水道港口,2024,45(2):224-229,6.基金项目
外罗海上风电场新型桩基冲刷防护装置研发及应用项目(YD/ZJG-21-048) （YD/ZJG-21-048）
天津水运工程勘察设计院有限公司科研创新基金项目(SJY202110) （SJY202110）
中央级公益性科研院所基本科研业务费项目(TKS20220301,TKS20210102) （TKS20220301,TKS20210102）
国家重点研发计划项目(2022YFE0104500) （2022YFE0104500）
