Design of floatable monolithic breakwater structure to ensure tranquility in port and harbor basins

  • Authors

    • Anjali Sebastian
    • Sruthy S
    • Jayadeep Thuvassery
    2018-09-22
    https://doi.org/10.14419/ijet.v7i4.5.25072
  • Floating Breakwater Structure (FBS), Pile Restrained Type, Significant Wave Height, Transmission Coefficient, ANSYS Software.

  • Abstract

    The objective of this paper is to present the selection, the detailing and optimal design of a floatable monolithic breakwater structure at Ponnani harbour in Kerala, India. Ponnani fishery harbour is an estuarine harbour and the breakwaters here serve the main purpose of river training bunds. Studies on preliminary analysis of tranquility condition in front of the wharf structure at Ponnani fishery harbour was conducted jointly by the Investigation subdivision, Beypore and Centre for Water Resources Development and Management (CWRDM), Pune. It has been noticed that due to seasonal variation in the wave directions, wave heights inside the basin areas and near the water front structures of the harbour are not within the permissible limits. A floating breakwater structure (FBS) is suggested to change the direction of waves and surges with seasons.

    The present proposal consists of construction of a floatable monolithic breakwater structure of length 70m. A pile restrained pontoon floating breakwater structure is adopted for Ponnani harbour. The ability of FBS to attenuate the incident wave is determined by calculat-ing the transmission coefficient. Theoretical formulas are used to check the effectiveness of the suggested FBS. The FBS has been mod-elled, analysed and arrived at an optimal design using the ANSYS software.

     

     

  • References

    1. [1] Bruce L.Mccartney (1985), “Floating Breakwater Design.

      [2] Journel Of Waterways,Port,Coastal And Ocean Engineering, 111(2).

      [3] A.N.Williams, P.T.Geiger, And W.G.Mc Dougal (1991), “Flex-ible Floating Breakwaterâ€, Journal of Waterways, Port, Coastal and Ocean Engineering, 117(5).

      [4] Kai Uwe Graw, Hans Kaldenhoff, Paul Mario Koola (1999).

      [5] “Behaviour Of Floating Breakwater Under Wave Actionâ€, Ph.D Thesis, Suez Canal University.

      [6] Arie Cornelis Biesheuvel (2013), “Effectiveness Of Floating Breakwatersâ€, M.Sc.Thesis, Delft University Of Technology.

      [7] Army Corps Of Engineers (1984), “Shore Protection Manu-alâ€,Vol I.

      [8] Army Corps Of Engineers (1984), “Shore Protection Manu-alâ€,Vol II.Army Corps Of Engineers (1984), “Shore Protection Manu-alâ€,Vol III.Coastal Engineering Manual (2002), Water Wave Mechan-ics,Part III.

      [9] Michael Isaacson and John Baldwin (1998), “WavePropaga-tion Past A Pile-Restrained Floating Break waterâ€, International Journal of Offshore and Polar Engineering, 8(4).

      [10] 10.Zhi-Jie Chen, Yong-Xue Wang, Hua-Yang Dong, Bin-Xin Zheng (2012), “Time-Domain Hydro dynamic Analysis Of Pontoon-Plate Floating Breakwaterâ€, Water Science & Engi-neering, PP 291-303.

      [11] 11.Piero Ruol, Luca Martinelli and Polo ezzutto (2013) , “Formu-la to Predict Transmission for pi-Type Floating Breakwatersâ€, Journal of Waterway, Port, Coastal, And Ocean Engineering, 139(1).

      [12] .J. S. Mani (1991), “Design of Y-Frame Floating Breakwaterâ€, Journal of Waterway, Port, Coastal, And Ocean Engineering, 117(2).

      [13] Zidan,A.R, Rageh, Sarhan, And El-Sharabasy(2012), “Wave Interaction With Single And Twin Pontoonsâ€,Sixteenth In-ternational Water Technology Conference, IWTC 16.

      [14] Bollmann (1996), “Wave interactions with vertical wave barri-ersâ€, no.237, United States Naval Academy, Annapolis, US-NA Trident Scholar report.

      [15] Huan-Yu Wang and Zhao-Chen Sun (2010), “Experimental Study on the Influence of Geometrical Configuration of Porous Floating Breakwater on Performanceâ€, Journal of Marine Science and Technology, 18(4), PP: 574-579.

      [16] By Lindell, Z.Hales (1981), “Floating Breakwater: State Of Art and Literature Reviewâ€, U.S Army Corps of Coastal Engineering Research Center, Technical Report No 81. 17.

      [17] T.Kowalski (1974), “Floating Breakwater Conference Papersâ€.

      [18] .Dr. Oluleke Oluwole, Dr.J.Odunfa, Olumide, P. Aboluwade (2015), “Investigating The Effect Of Ocean Waves On Gravi-ty Based Offshore Platform Using Finite Element Analysis Software ANSYSâ€, International Journal Of Scientific & Engineering Research, 6(8).

      [19] Ketan Gajanan Nalawade, Ashish Sabu, Baskar (2014), “Dy-namic and Static Structural Analysis of Ladder Frameâ€, In-ternational Journal of Engineering Trends and Technology 11(2).

      [20] Allsop, N.W.H.; Vicinanza, D.; Mckenna (1996), “Wave Forces On Vertical and Composite Breakwatersâ€, Strategic Re-search Report. Hydraulic Research Wallingford, pp.94.

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  • How to Cite

    Sebastian, A., S, S., & Thuvassery, J. (2018). Design of floatable monolithic breakwater structure to ensure tranquility in port and harbor basins. International Journal of Engineering & Technology, 7(4.5), 736-741. https://doi.org/10.14419/ijet.v7i4.5.25072

    Received date: 2018-12-30

    Accepted date: 2018-12-30

    Published date: 2018-09-22