Experimental Investigation of the Hydraulic Performance of Breakwater Structures with Geotextile Armor Units
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 148, Issue 3
Abstract
Geotextile sand containers (GSCs) gained popularity recently as a modern age coastal protection measure. Its usability as an ecofriendly alternative for traditional breakwaters overcomes issues such as scarcity and quarrying prohibition of natural rocks. The current work involves a 1:30 scaled physical experimentation on the hydraulic performance of an emerged, nonovertopping breakwater model with GSCs. Four configurations of GSC structures are analyzed for their runup, rundown, and reflection characteristics confining to wave parameters of Mangaluru. The study revealed that the reflection coefficient (Kr) for GSC structures could range from 0.26 to 0.69. In addition, reducing GSC fill percentage from 100 to 80 is found to be more effective (up to 64%) in reducing reflection, runup, and rundown rates, than altering GSC size. These results can serve as a practical guideline for designing GSC breakwaters.
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Acknowledgments
The authors wish to express gratitude to the Director, NITK, Surathkal, Mangaluru, India, and Head, Department of Water Resource and Ocean Engineering for the opportunity to conduct the present research. Technical support of Khator Technical Textiles, Maharashtra, India, in supplying nonwoven geotextiles free of cost is duly acknowledged. Support extended by nonteaching staff and colleagues in conducting physical model tests is appreciated with gratitude.
References
Ahrens, J., and B. L. McCartney. 1975. “Wave period effect on the stability of riprap.” In ASCE Speciality Conf. on Civil Engineering, in the OCEANS III, 1019–1034. Newark, DE: Delaware Univ.
Battjes, J. A., and R. Ary. 1976. “Characteristics of flow in run-up of periodic waves.” In Proc., 15th Int. Conf. on Coastal Engineering, 781–795. Reston, VA: ASCE.
Diwedar, A. I. 2016. “Investigating the effect of wave parameters on wave runup.” Alexandria Eng. J. 55: 627–633. https://doi.org/10.1016/j.aej.2015.12.012.
Elias, T., A. S. Kiran, and V. Ravichandran. 2018. “Analysis of berthing sub-structures using Plaxis 2D.” In Proc., INCHOE-2018, Indian Society for Hydraulics and Central Water & Power Research Station. Pune, India: Central Water & Power Research Station.
Elias, T., and K. G. Shirlal. 2021. “Coastal protection using geosynthetic containment systems—An Indian timeline.” Lect. Notes Civ. Eng. 106: 439–450. https://doi.org/10.1007/978-981-15-8506-7_38.
Elias, T., K. G. Shirlal, and E. V. Kajal. 2021. “Physical model studies on damage and stability analysis of breakwaters armored with geotextile sand containers.” Geotext. Geomembr. 49 (3): 604–618. https://doi.org/10.1016/j.geotexmem.2020.12.001.
Faraci, C. 2018. “Experimental investigation on hydro-morphodynamic performances of a geocontainer submerged reef.” J. Waterway, Port, Coastal, Ocean Div. 144 (2): 04017048.
Foyer, G. 2013. Prediction formulae for processes on and in porous bonded revetments – An experimental and numerical study. Braunschweig, Germany: Technical University Carolo-Wilhelmina Braunschweig.
Isaacson, M. 1992. “Measurement of regular wave reflection.” J. Waterway, Port, Coastal, Ocean Eng. 117 (6): 553–569. https://doi.org/10.1061/(ASCE)0733-950X(1991)117:6(553).
Jackson, L. A. 2016. “Coastal stabilisation – advancement in geotextile design & construction methods as an alternative to rock.” In Proc., 3rd Int. Conf. on Coastal Zone Engineering and Management in the Middle East (Arabian Coast 2016), 321–342. Dubai, U.A.E: Dubai Municipality.
Kobayashi, N., and B. K. Jacobs. 1985. “Stability of armor units on composite slopes.” J. Waterway, Port, Coastal, Ocean Eng. 111 (5): 880–894. https://doi.org/10.1061/(ASCE)0733-950X(1985)111:5(880).
Kriel, H. J. 2012. “Hydraulic stability of multi-layered sand-filled geotextile tube breakwaters under wave attack.” M.Sc. thesis, Dept. of Port and Coastal Engineering, Stellenbosch Univ.
Melby, J. A., and G. F. Turk. 1997. CORE-LOC concrete armor units. Washington, DC: U.S. Army Engineer Waterways Experiment Station.
Muttray, M., H. Oumeraci, and E. T. Oever. 2006. “Wave reflection and wave run-up at rubble mound breakwaters.” In Proc., 30th ICCE, 4313–4324. Singapore: World Scientific.
Nasar, T., R. Balaji, and V. Sundar. 2004. “Hydrodynamic characteristics and stability of rubble mound breakwater with geobags as the core.” In Proc., 3rd Indian National Conf. on Harbour & Ocean Engineering, 492–497. Chennai, India: National Institute of Oceanography.
Nishold, S. P., R. Sundaravadivelu, and N. Saha. 2019. “Physical model study on geo-tube with gabion boxes for the application of coastal protection.” Arabian J. Geosci. 12: 164.
Oumeraci, H., and A. Kortenhaus. 2011. “Core made of geotextile sand containers for rubble mound breakwaters and seawalls: Effect on armor stability and hydraulic performance.” Ocean Eng. 38: 159–170. https://doi.org/10.1016/j.oceaneng.2010.10.014.
Oumeraci, H., Recio, J., 2018. “Geotextile sand containers for shore protection.” In Handbook of coastal and ocean engineering, edited by Y. C. Kim, 775–822. Singapore: World Scientific.
Oumeraci, H., T. Stall, S. Pfortner, and G. Ludwigs. 2010. “Hydraulic performance, wave loading and response of ELASTOCOAST revetments and their foundations.” In Proc., 11th National Coastal Engineering Days - Civil Engineering, 709–740. Braunschweig, Germany: TU Braunschweig - Leichtweiss Institut.
Pilarczyk, K. W. 1987. Dutch guidelines on dike protection. Rep. W.B. No. 87110. Delft, Netherlands: Dutch Ministry of Transport and Public Works Road and Hydraulic Engineering Dept.
Rao, S., K. Subrahmanya, B. K. Rao, and V. R. Chandramohan. 2008. “Stability aspects of nonreshaped berm breakwaters with reduced armor weight.” J. Waterway, Port, Coastal, Ocean Eng. 134: 81–87. https://doi.org/10.1061/(ASCE)0733-950X(2008)134:2(81).
Rasmeemasmuang, T., W. Chuenjai, and W. Rattanapitikon. 2014. “Wave run-up on sandbag slopes.” Maejo Int. J. Sci. Technol. 8: 48–57.
Schimmels, S., D. W. Michalis Vousdoukas, K. Becker, F. Gier, and H. Oumeraci. 2012. “Wave run-up observations on revetments with different porosities.” In Proc., 33rd Int. Conf. on Coastal Engineering, 1–14. Spain: Spanish Society of Civil Engineers.
Seeling, W. N., and J. P. Ahrens. 1981. Estimation of wave reflection and energy dissipation coefficients for beaches, revetments, and breakwaters. Washington, DC: U.S. Army Corps of Engineering Coastal Engineering Research Center.
Shankar, N. J., and M. P. R. Jayaratne. 2003. “Wave run-up and overtopping on smooth and rough slopes of coastal structures.” Ocean Eng. 30: 221–238. https://doi.org/10.1016/S0029-8018(02)00016-1.
Shin, E. C., and Y. I. Oh. 2007. “Coastal erosion prevention by geotextile tube technology.” Geotext. Geomembr. 25: 264–277. https://doi.org/10.1016/j.geotexmem.2007.02.003.
Shirlal, K. G., S. Rao, V. Ganesh, and Manu. 2006. “Stability of breakwater defenced by a seaward submerged reef.” Ocean Eng. 33: 829–846. https://doi.org/10.1016/j.oceaneng.2004.11.017.
van der Meer, J. W., and M. Stam. 1992. “Wave runup on smooth and rock slopes of coastal structures.” J. Waterway, Port, Coastal, Ocean Eng. 118: 534–550. https://doi.org/10.1061/(ASCE)0733-950X(1992)118:5(534).
van Gent, M. R., E. Berendsen, G. B. H. Spaan, J. W. van der Meer, and K. d’Angremond. 1999. “Single-layer rubble mound breakwaters.” In Proc., Int. Conf. Coastal Structures, 231–239. London: Thomas Telford.
Yamini, O. A., M. R. Kavianpour, and S. H. Mousavi. 2018. “Wave run-up and rundown on ACB Mats under granular and geotextile filters condition.” Mar. Georesour. Geotechnol. 36: 895–906. https://doi.org/10.1080/1064119X.2017.1397068.
Zanuttigh, B., and J. W. van der Meer. 2008. “Wave reflection from coastal structures in design conditions.” Coast. Eng. 55: 771–779. https://doi.org/10.1016/j.coastaleng.2008.02.009.
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Received: Aug 12, 2021
Accepted: Feb 1, 2022
Published online: Mar 16, 2022
Published in print: May 1, 2022
Discussion open until: Aug 16, 2022
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