STUDY ON TIME-DEPENDENT OF BEARING CAPACITY OF OFFSHORE LARGE-DIAMETER MONOPILES

被引：0
|
作者：
Yang, Suchun [1 ,2 ]
Chen, Qiang [2 ]
Bie, Shean [1 ]
He, Fubo [2 ]
机构：
[1] Tianjin Univ, Sch Civil Engn, Tianjin, Peoples R China
[2] Tianjin Port & Channel Engn Co Ltd, Tianjin, Peoples R China
来源：
CIVIL ENGINEERING JOURNAL-STAVEBNI OBZOR | 2022年 / 31卷 / 03期
关键词：
Offshore; Large diameter; Monopiles; Side resistance; Time-dependent;
D O I：
10.14311/CEJ.2022.03.0037
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
To improve the accuracy of predicting the bearing capacity of offshore large-diameter monopiles, the initial high strain detection and repeated high strain detection with an interval of 10-84 days were carried out on 6 large-diameter monopiles with a diameter of 7.2m-7.4m in the offshore wind field dominated by clay soil layer. The results show that the time-dependent increment of tip resistance, side resistance and the total resistance of large-diameter monopiles in the same offshore wind farm has great discreteness, and the axial force increment of monopiles has a consistent change trend. This paper puts forward the prediction interval of 95% guarantee rate of bearing capacity increment of the offshore large-diameter monopiles based on depth, which provides a basis for the design of large-diameter monopiles.
引用
收藏
页码：494 / 503
页数：10
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