Pemodelan Numeris Pengaruh Konstruksi Breakwater di PPN Brondong

Karunia, Nurul (2023) Pemodelan Numeris Pengaruh Konstruksi Breakwater di PPN Brondong. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pelabuhan Perikanan Nusantara (PPN) Brondong merupakan pusat kegiatan perikanan laut di wilayah Kabupaten Lamongan terutama dalam usaha perikanan tangkap. Pelabuhan ini terletak di Desa Brondong, Kecamatan Brondong, Kabupaten Lamongan, Provinsi Jawa Timur. Di kolam Pelabuhan PPN Brondong masalah yang timbul yaitu pendangkalan akibat arus dan gelombang. Untuk menanggulangi hal tersebut dibangunkan bangunan pelindung pantai breakwater. Untuk mengetahui efektivitas dari struktur tersebut maka akan dibuat suatu model dengan software Delft-3D untuk mengetahui pola arus dan tinggi gelombang di area kolam Pelabuhan. Analisis pola arus dilakukan dengan membandingkan sebelum dan sesudah adanya konstruksi breakwater. Untuk analisis tinggi gelombang dibuat dua layout alternatif sebagai pembanding efektivitas breakwater mengurangi tinggi gelombang. Dari hasil analisis didapatkan bahwa terjadi perubahan pola arus dengan rata-rata penurunan kecepatan arus antara sebelum dan saat adanya konstruksi adalah 86.903%. Sedangkan untuk analisis tinggi gelombang menunjukan bahwa kinerja terbaik dimiliki oleh layout existing karena ketinggian gelombang pada titik 1,2,3, dan 4 pada periode ulang 1, 5, 50, dan 100 tahun tidak melebihi 0,3 meter.
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Brondong nusantara Fishing Port (PPN) is the center of marine fisheries activities in the Lamongan Regency area, especially in the capture fisheries business. This port is located in Brondong Village, Brondong District, Lamongan Regency, East Java Province. In the pond of PPN Brondong Port, the problem that arises is siltation due to currents and waves. To overcome this, a breakwater coastal protection building was built. To determine the effectiveness of the structure, a model will be made with Delft-3D software to determine the current pattern and wave height in the harbor pond area. Analysis of current patterns is done by comparing before and after the construction of breakwater. For wave height analysis, two alternative layouts are made to compare the effectiveness of breakwater in reducing wave height. From the analysis, it was found that there was a change in the current pattern with an average decrease in current speed between before and during construction was 86.903%. Meanwhile, the wave height analysis shows that the best performance is owned by the existing layout because the wave height at points 1, 2, 3, and 4 in the return period of 1, 5, 50, and 100 years does not exceed 0.3 meters.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Breakwater, waves, currents, Harbor pond, numerical modeling, Delft-3D Breakwater, gelombang, arus, kolam Pelabuhan, pemodelan numerik, Delft-3D
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC333 Breakwaters
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Nurul Karunia
Date Deposited:	21 Jul 2023 08:55
Last Modified:	21 Jul 2023 08:55
URI:	http://repository.its.ac.id/id/eprint/98814

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