Evaluasi Kerusakan Struktur Pelindung Pantai Berdasarkan Pendekatan Metocean Data : Studi Kasus Pantai Markoni Balikpapan Kota

Paratu, Ferdianto Riwang (2025) Evaluasi Kerusakan Struktur Pelindung Pantai Berdasarkan Pendekatan Metocean Data : Studi Kasus Pantai Markoni Balikpapan Kota. Bachelor thesis, Institut Teknologi Kalimantan.

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Abstract

Pantai Markoni terletak di Kota Balikpapan yang menjadi destinasi wisata. Terdapat Jetty yang menjorok ke lautan menjadi daya tarik wisatawan di pantai ini. Salah satu akses menuju Jetty tersebut yaitu dengan melalui bangunan revetment. Kondisi revetment mulai mengalami kerusakan serta elevasi yang sudah tidak efektif dalam menghadapi limpasan gelombang. Hal ini menyebabkan struktur revetment tidak berfungsi secara maksimal sehingga dapat menyebabkan bahaya bagi pengunjung serta tidak mampu menahan erosi dan abrasi. Penelitian ini dilakukan untuk mengevaluasi kerusakan yang terjadi pada struktur serta memberikan saran tindakan berupa desain alternatif sebagai upaya penanggulangan. Metode penilaian menggunakan kriteria dari kementerian PUPR Hasil penilaian kinerja menunjukkan bahwa struktur revetment eksisting berada dalam kondisi “perlu perbaikan” dengan indeks 2.6 dengan saran tindakan kaji ulang. Selanjutnya dalam melakukan perencanaan, data metocean yang dibutuhkan yaitu tinggi gelombang rencana, tinggi gelombang pecah dan nilai HHWL dari komponen pasang surut. Dari hasil analisis yang telah dilakukan, didapat tinggi gelombang rencana 0.67 meter, gelombang pecah (Hb) 0.71 meter dan HHWL 2.93 meter. Variabel pada penelitian yaitu berupa variasi alternatif desain dengan tinggi alternatif 1 yaitu 4.44 meter dan alternatif 2 yaitu 5.44 meter. Ketahanan struktur terhadap bahaya overtunning/penggulingan dari kedua alternatif telah memenuhi kriteria stabilitas dengan faktor keamanan >2, masing – masing 3.39 dan 4.39. Alternatif 2 lebih di rekomendasikan karena memberikan stabilitas lebih tinggi dan perlindungan terhadap kondisi overtopping dengan prioritas ketahanan struktur dalam jangka panjang. Markoni Beach is located in Balikpapan City which is a tourist destination. There is a Jetty that juts into the ocean to attract tourists on this beach. One of the accesses to the Jetty is through the revetment building. The condition of the revetment began to experience damage and elevation that was no longer effective in dealing with wave runoff. This causes the revetment structure to not function optimally so that it can cause danger to visitors and is unable to withstand erosion and abrasion. This research was conducted to evaluate the damage that occurred to the structure and provide suggestions for action in the form of alternative designs as a countermeasure. The assessment method uses criteria from the PUPR ministry performance assessment results show that the existing revetment structure is in a condition of“needs improvement” with an index of 2.6 with suggestions for review actions, wave forecasting obtained a plan wave height of 0.67 meters, breaking wave (Hb) of 0.71 meters. Tidal data was processed using the admiralty method to determine the lowest and highest tide conditions used as a reference in implementing design alternatives, the HHWL value is 2.93 meters. Variables in the study are in the form of alternative design variations with a height of alternative 1 is 4.44 meters and alternative 2 is 5.44 meters. Resilience structure against overtunning / overturning hazards from both alternatives have met the stability criteria with a safety factor> 2, respectively 3.39 and 4.39. Alternative 2 is recommended because it provides higher stability and protection against overtopping conditions with the prioritizing the long-term durability of the structure It is expected that the results of this study can be used as a reference and guide for local government agencies to take corrective action on the structure

Item Type:	Thesis (Bachelor)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TC Hydraulic engineering. Ocean engineering V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions:	Jurusan Sains, Teknologi Pangan, dan Kemaritiman > Teknik Kelautan
Depositing User:	Ferdianto Paratu
Date Deposited:	14 Jul 2025 03:12
Last Modified:	14 Jul 2025 03:12
URI:	http://repository.itk.ac.id/id/eprint/24054

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