Journal
MARINE STRUCTURES
Volume 84, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.marstruc.2022.103225
Keywords
Rigid pile; Sands; Lateral load; Hypoplastic; Pile-soil interaction
Categories
Funding
- National Key Research and Development Program [2018YFE0109500]
- National Natural Science Foundation of China [51779221, 51909249, 51939010]
- Zhejiang Provincial Natural Science Foundation [LHZ20E090001, LQ19E090001]
- Fugro Chair in Geotechnics
Ask authors/readers for more resources
This paper presents the results of a numerical investigation on the lateral moment-rotation response of a monopile in sand, demonstrating that it can be represented using a single non-linear rotational spring. A simple approximate expression is developed to determine the response of a monopile to a lateral load in sand.
Monopiles are the most popular foundation for offshore wind turbines. These foundations typically have a low length to diameter ratio and undergo a rigid body rotation when subjected to lateral load. This paper presents results from an extensive numerical investigation involving 3D finite element analyses to demonstrate that the lateral moment-rotation response of a monopile in sand can be represented using a single non-linear rotational spring located at a depth of about 0.75 times the pile embedment. Expressions for the elastic rotational stiffness of a monopile under very low rotations are developed and these combined with observations from measured nonlinear variations of rotational stiffness, that are supported by the numerical analyses, are used to develop a simple approximate expression that can be used to determine the response of a monopile to a monotonic lateral load in sand.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available