Shirlal, K.G.Rao, S.Varghese, R.V.2026-02-052011International Journal of Earth Sciences and Engineering, 2011, 4, 5, pp. 261-2659745904https://idr.nitk.ac.in/handle/123456789/27318Investigators are increasingly concentrating their focus of research on coastal protection which is shifting from the hard measures to eco-friendly solutions with optimal usage of construction materials. A structure located near the water surface is known to be effective in bringing down the wave activity behind it, since; the energy of the waves is concentrated in the region close to the surface. This paper explains the comprehensive experimental study to evaluate the transmission coefficients (K<inf>t</inf>) of various configurations of submerged plate structures. K<inf>t</inf> for various plate configurations such as single plate, twin plate and combined plate are obtained. It is found that a single plate inclined at 60° to the horizontal is generally effective i. e. K<inf>t</inf> ? 0.6 to a large extent. However, the twin and combined plate structures improved the performance. © 2011 CAFET-INNOVA TECHNICAL SOCIETY. All rights reserved.Coastal engineeringEnvironmental protectionShore protectionWave transmissionCoastal protectionEco-friendlyExperimental studyPlate structureSingle-plate structuresTransmission coefficientsPlates (structural components)