DEM element modelling of silent piling group installation for offshore wind turbine foundations
DEM element modelling of silent piling group installation for offshore wind turbine foundations
Offshore wind farms are now built in deeper water and bigger foundations are required to stabilise wind turbines of increasing sizes. Pile driving is the most widespread foundation installation method, but more stringent environmental regulations necessitate costly mitigation methods to reduce underwater noise emissions. The silent piling (push-in) concept presented in this work is composed of a cluster of four piles, progressively installed by successive jacking sequences. During one sequence, each pile is moved downward by 0.5m stroke, while the other piles are used as reaction. This paper presents the results of Discrete Element Method (DEM) of the installation process. This work identifies the main features of the push-in installation method, such as pile interaction, progressive plugging and loss of efficiency as a function of depth. It is shown that the cluster capacity can reach six times the weight of the tool necessary to silently install the piles.
Cerfontaine, Benjamin
0730daf4-9d6b-4f2d-a848-a3fc54505a02
Brown, Michael
4aec31d6-db86-4d2d-98b4-4c52bc30e16d
Ciantia, Matteo
a96c5e90-142b-4dae-9369-4c6c54d130d0
Huisman, Marco
fb44d706-adb8-4655-9624-ebfbd6cdf4f4
Ottolini, Marius
3eccb879-6dbd-4049-96f1-39cffbd9733f
June 2021
Cerfontaine, Benjamin
0730daf4-9d6b-4f2d-a848-a3fc54505a02
Brown, Michael
4aec31d6-db86-4d2d-98b4-4c52bc30e16d
Ciantia, Matteo
a96c5e90-142b-4dae-9369-4c6c54d130d0
Huisman, Marco
fb44d706-adb8-4655-9624-ebfbd6cdf4f4
Ottolini, Marius
3eccb879-6dbd-4049-96f1-39cffbd9733f
Cerfontaine, Benjamin, Brown, Michael, Ciantia, Matteo, Huisman, Marco and Ottolini, Marius
(2021)
DEM element modelling of silent piling group installation for offshore wind turbine foundations.
In Second International Conference on Press-in Engineering, Kochi, Japan, 19/06/21.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Offshore wind farms are now built in deeper water and bigger foundations are required to stabilise wind turbines of increasing sizes. Pile driving is the most widespread foundation installation method, but more stringent environmental regulations necessitate costly mitigation methods to reduce underwater noise emissions. The silent piling (push-in) concept presented in this work is composed of a cluster of four piles, progressively installed by successive jacking sequences. During one sequence, each pile is moved downward by 0.5m stroke, while the other piles are used as reaction. This paper presents the results of Discrete Element Method (DEM) of the installation process. This work identifies the main features of the push-in installation method, such as pile interaction, progressive plugging and loss of efficiency as a function of depth. It is shown that the cluster capacity can reach six times the weight of the tool necessary to silently install the piles.
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Published date: June 2021
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Local EPrints ID: 452772
URI: http://eprints.soton.ac.uk/id/eprint/452772
PURE UUID: 32cfaca9-10f7-4076-9c90-f2d3b60abd9f
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Date deposited: 20 Dec 2021 17:33
Last modified: 21 Dec 2021 02:52
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Contributors
Author:
Michael Brown
Author:
Matteo Ciantia
Author:
Marco Huisman
Author:
Marius Ottolini
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