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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  *Corresponding author; email: heemin.teh@petronas.com.my

 

 

 

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