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Title: | Stability equation for breakwater sheltered by a seaward submerged reef |
Authors: | Shirlal, K.G. Rao, S. Manu, M. |
Issue Date: | 2007 |
Citation: | ISH Journal of Hydraulic Engineering, 2007, Vol.13, 1, pp.18-31 |
Abstract: | Breakwater's vulnerability to extreme events such as storms is a reality. To avert the failure of the breakwater, one of the things engineers can do is to design a seaward reef which breaks steep waves and attenuates them. The stability of such a reef, a conventional rubble mound breakwater and a breakwater protected by a seaward submerged reef is investigated through physical model study using regular waves. Tests are carried out for different relative spacings between two rubble mound structures (X/d = 2.5 to 13.33) and for different relative heights (h/d = 0.625 to 0.833) while keeping reef crest width B constant at 0.1m (i.e. the relative crest width B/d = 0.25 to 0.33). The submerged reef of crest width 0.1m located at a seaward distance X of 1 m, 2.5 m and 4.0 m reduces the breakwater damages by a range of 4 to 41 %, 40 to 66% and 63 to 80% respectively. The stability equations for reef and defenced breakwater are derived from curve fitting through the experimental data. 2007 Taylor & Francis Group, LLC. |
URI: | http://idr.nitk.ac.in/jspui/handle/123456789/13506 |
Appears in Collections: | 1. Journal Articles |
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