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Sains Malaysiana 42(9)(2013): 1301–1310
Hydraulic
Performance of Free Surface Breakwaters: A Review
(Prestasi Hidraulik
Pemecah Ombak Permukaan Bebas: Suatu Tinjauan)
H.M. Teh*
Civil Engineering Department, University Teknologi PETRONAS,
Bandar Seri Iskandar
31750 Tronoh, Perak, Malaysia
Received: 13 August 2012 /Accepted: 25 January 2013
ABSTRACT
This paper introduces the concept of free surface breakwaters for
coastal protection. The advantages, limitations and applications of these
breakwaters are discussed. Based on their configurations, free surface
breakwaters have been classified into four types, namely solid-type,
plate-type, caisson-type and multipart-type. Typical designs of the respective
breakwater types are presented and the hydraulic characteristics are reviewed.
In addition, comparisons of hydraulic efficiency of some of the free surface
breakwaters are also addressed in this paper.
Keywords: Energy dissipation; free surface breakwater; wave
attenuation; wave reflection
ABSTRAK
Kertas penyelidikan
ini memperkenalkan
konsep pemecah ombak permukaan bebas untuk perlindungan
pantai. Kelebihan, batasan dan
aplikasi bagi pemecah
ombak dibincangkan.
Pemecah ombak permukan
bebas ini
telah dikelaskan berdasarkan kepada empat jenis, iaitu
jenis konfigurasi
jasad, jenis plat, jenis caisson dan jenis berbilang-bahagian. Reka bentuk pemecah ombak yang tipikal masing-masing dibentangkan dan ciri-ciri hidraulik
dikaji. Di
samping itu, perbandingan
kecekapan hidraulik
bagi beberapa jenis
pemecah ombak
permukan bebas juga disertakan dalam kertas ini.
Kata kunci: Pantulan ombak; pelesapan tenaga; pemecah ombak permukaan bebas; pengecilan ombak
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