[1]杜硕,戴国亮,高鲁超,等.波流作用近海风机单桩基础局部冲刷深度预测[J].东南大学学报(自然科学版),2020,50(4):616-622.[doi:10.3969/j.issn.1001-0505.2020.04.003] 　Du Shuo,Dai Guoliang,Gao Luchao,et al.Prediction of local scour depth at offshore wind turbine monopile foundation in combined waves and current[J].Journal of Southeast University (Natural Science Edition),2020,50(4):616-622.[doi:10.3969/j.issn.1001-0505.2020.04.003] 点击复制 波流作用近海风机单桩基础局部冲刷深度预测() 分享到： var jiathis_config = { data_track_clickback: true };

50

2020年第4期

616-622

2020-07-20

文章信息/Info

Title:
Prediction of local scour depth at offshore wind turbine monopile foundation in combined waves and current

Author(s):
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 211189, China
School of Civil Engineering, Southeast University, Nanjing 211189, China

Keywords:

TU473
DOI:
10.3969/j.issn.1001-0505.2020.04.003

Abstract:
The local scour mechanism of the offshore wind turbine monopile foundation is relatively complex in the combined waves and current, leading to the differences in the existing local scour depth prediction methods. Based on the dimensional analysis principle and experimental data, an empirical formula is proposed for predicting local scour depth, which considers the main controlling factors in combined waves and current. Combined with the field monitoring data of Rudong offshore wind power plant in Jiangsu Province,four statistical evaluation indicators were used to compare the performance of the predictive equations of local scour depth, including Chinese standard formula, DNV formula, HEC-18 formula, Rudolph formula, Raaijmakers formula and the proposed formula. The predicted values of the proposed formula are in good agreement with the field monitoring data, and the relative error, the average absolute relative error(20.10%), the variance(3.90%)and the normalized variance(3.93%)are all smaller than those of the other formulae, indicating that the proposed prediction formula is reasonable and effective. This research provides a theoretical reference for the local scour design of offshore wind turbine.

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