The nature of scour development and scour protection at offshore windfarm foundations
The nature of scour development and scour protection at offshore windfarm foundations.
Whitehouse, R.J.S.and Harris, J. and Sutherland, J. and Rees, J.
Marine Pollution Bulletin, 62 . pp. 73-88. (2010)
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|Abstract:||Analysis and interpretation of monitoring data for the seabed bathymetry local to offshore windfarm foundations has shown how the scour develops in time and highlighted variations between sites with different seabed sediment characteristics, i.e. sands and clays. Results from European offshore windfarms have generated a unique dataset for comparison with previously published data. Where surficial sediment is underlain by a marine clay the scour (to date) has been limited, whilst those with unconstrained depths of sandy sediments show scour as deep as 1.38 times the monopile diameter. Scour protection has been installed at some sites for structural stability of the foundation or for cable protection. The flow interaction with the protection causes edge scour or secondary scour in the seabed around the protection. In some cases this scour is deeper than the unprotected case. The analysis has resulted in an improved evidence base for scour in the marine environment.|
|Subjects:||Maritime > General|
|Deposited On:||29 Nov 2010 10:52|
|Last Modified:||11 Aug 2014 08:19|
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