Stability of rubble mound breakwaters with a berm

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Stability of rubble mound breakwaters with a berm

Conference Paper (2012)

Author(s)

Marcel R.A. Van Gent (Deltares)

Gregory M. Smith (Van Oord Dredging and Marine Contractors)

Ivo M. Van Der Werf (Deltares)

Affiliation

External organisation

Stability Physical model tests Coastal structures Berm Rock slopes Design formula Breakwaters

DOI related publication

https://doi.org/10.9753/icce.v33.structures.10 Final published version

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https://resolver.tudelft.nl/uuid:1e08f0fd-4b81-4292-800e-60444fd0a98d

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Publication Year

2012

Language

English

Affiliation

External organisation

ISBN (print)

9780989661119

Event

33rd International Conference on Coastal Engineering 2012, ICCE 2012 (2012-07-01 - 2012-07-06), Santander, Spain

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Abstract

The stability of rock slopes with a horizontal berm has been studied by means of physical model tests. This paper is focussed on the rock slope stability of the slopes above and below the berm. By applying a berm the rock size can be reduced compared to the required rock size for a straight slope without a berm. This reduction can be significant for the slope above the berm. The influence of the slope angle (1:2 and 1:4), the width of the berm, the level of the berm, and the wave steepness have been investigated. Based on the test results prediction formulae have been derived to quantify the required rock size for rubble mound breakwaters with a berm.