STUDY RE-ANALYSIS OF HIGH WAVE DEFORMATION IN RE-DESIGN COASTAL REVETMENT PROTECTION OF RAJABASA BEACH KALIANDA

  • Muhammad Aldhiansyah Rifqi Fauzi Department of Ocean Engineering, Sumatera Institute of Technology (ITERA), South Lampung, Indonesia.
  • Muhammad Gilang Indra Mardika Department of Civil Engineering, Sumatera Institute of Technology (ITERA), South Lampung, Indonesia.
  • Muhammad Fatkhurrozi Department of Ocean Engineering, Sumatera Institute of Technology (ITERA), South Lampung, Indonesia
  • Ahmad Fadlun Harianto Martino Departement of Water Resources Management Faculty of Civil and Environmental Engineering, Bandung Institute of Technology (ITB), Bandung, Indonesia

Abstract

The eruption of Mount Krakatau in 2018, along with high waves, has impacted the coastal conditions of Kalianda Beach. The parameters for planning the revetment include significant wave height, highest high water level (HHWL), refraction and shoaling coefficients, wave set-up, and SLR. Wave data processing was conducted using the FT Type I. The extreme wave 50-year period has a height (Hr) of 2.22 m and a period (Tr) of 14.67 s. The wave transformation coefficients for refraction and shoaling, which are 0.74 and 1.44 respectively, lead to a deformation wave height of 2.19 m at a depth of 5 m. Admiralty tide analysis yielded a tidal range element at MSL of 0.94 m, which serves as the datum for elevation point 0. The HHWL from MSL is 0.73 m, wave set-up is 0.58 m due to breaking waves at 3.43 m, and SLR is 0.16 m, leading to a DWL of 1.46 m. The wave run-up varies according to the type of revetment, boulder type elevations id 4.60 m, tetrapod type is 3.80 m, and dolos type is 4.40 m. Differences elevation are attributed to different wave run-up every type of revetment material, run-up of the type  material boulder is 2.83 m, run-up of tetrapod is 2.08 m, and dolos is 2.67 m.

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Author Biographies

Muhammad Aldhiansyah Rifqi Fauzi, Department of Ocean Engineering, Sumatera Institute of Technology (ITERA), South Lampung, Indonesia.

Department of Ocean Engineering, Sumatera Institute of Technology  (ITERA), South Lampung, Indonesia.

Muhammad Gilang Indra Mardika, Department of Civil Engineering, Sumatera Institute of Technology (ITERA), South Lampung, Indonesia.

Department of Civil Engineering, Sumatera Institute of Technology  (ITERA), South Lampung, Indonesia.

Muhammad Fatkhurrozi, Department of Ocean Engineering, Sumatera Institute of Technology (ITERA), South Lampung, Indonesia

Department of Ocean Engineering, Sumatera Institute of Technology  (ITERA), South Lampung, Indonesia

Ahmad Fadlun Harianto Martino, Departement of Water Resources Management Faculty of Civil and Environmental Engineering, Bandung Institute of Technology (ITB), Bandung, Indonesia

Departement of Water Resources Management  Faculty of Civil and Environmental Engineering, Bandung Institute of Technology  (ITB), Bandung, Indonesia

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Published
2024-07-01
How to Cite
FAUZI, Muhammad Aldhiansyah Rifqi et al. STUDY RE-ANALYSIS OF HIGH WAVE DEFORMATION IN RE-DESIGN COASTAL REVETMENT PROTECTION OF RAJABASA BEACH KALIANDA. Journal of Science and Applicative Technology, [S.l.], v. 8, n. 1, p. 24-37, july 2024. ISSN 2581-0545. Available at: <https://journal.itera.ac.id/index.php/jsat/article/view/1754>. Date accessed: 03 july 2024. doi: https://doi.org/10.35472/jsat.v8i1.1754.