Analisa Risiko Tabrakan Kapal Pada Platform Di Perairan Selat Madura

Ravizqi, Aghfirli Damian (2023) Analisa Risiko Tabrakan Kapal Pada Platform Di Perairan Selat Madura. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perekonomian Indonesia yang sebagian besar bergantung pada laut, mengingat wilayahnya yang hampir 70% lautan. Alur pelayaran menjadi sarana penting untuk keluar masuk pelabuhan. Salah satu alur pelayaran yang signifikan adalah Alur Pelayaran Barat Surabaya (APBS), dengan lebar 150 meter dan panjang 25 mil laut. APBS terdiri dari alur baru dan alur lama yang dapat dilalui oleh kapal dengan ukuran sarat yang berbeda. APBS dilalui oleh berbagai jenis kapal, termasuk kapal penumpang , ro-ro, container, general cargo, dan bulk carrier. Pada tahun 2019, rata-rata terdapat 9.624 unit kapal yang melintas setiap tahun atau sekitar 802 unit per bulan. Terdapat anjungan lepas pantai di sepanjang APBS, terutama di jalur keluar atau masuk dekat Pulau Karang Jamuang. Kecelakaan kapal menabrak platform KE40 milik Kodeco Energy Ltd di perairan Laut Jawa pada tahun 2010 menyebabkan kerusakan dan kerugian besar dalam produksi minyak dan gas. Dengan peningkatan jumlah kapal yang melintas di APBS, risiko kecelakaan serupa juga meningkat. Oleh karena itu, analisis struktur bangunan lepas pantai menjadi penting untuk memastikan kekuatan dan keandalan struktur terhadap kemungkinan tabrakan kapal yang ekstrim, yang dapat mengancam fungsi dan
integritas struktur tersebut. Dalam analisis struktur bangunan lepas pantai, faktor-faktor seperti
kondisi lingkungan, jenis kapal yang beroperasi, lokasi, jenis anjungan lepas pantai, dan kegagalan navigasi harus diperhatikan. Tujuannya adalah menganalisis kemampuan struktur dalam memenuhi tujuan desain yang telah ditetapkan dan mencegah penurunan kekuatan atau kegagalan struktur yang dapat mempengaruhi fungsinya. Dalam perhitungan frekuensi yang dilakukan menggunakan metode kuantitatif Collision Risk Assessment of Shipping Hazard (CRASH) didapat frekuensi kejadian tabrakan skenario drifting vessel collision adalah
0,0000016 dan untuk skenario Head-on Collision adalah 0,000145, yang berada pada kategori 3, lalu untuk perhitungan konsekuensi beban tabrakan arah 60 derajat dapat menyebabkan konsekuensi kerusakan lokal pada Platform WHP-C. Dari analisis konsekuensi didapat peluang kegagalan struktur ketika menerima beban tabrakan arah 60 derajat adalah 0,596 atau 60%, yang berada pada kategori 5 menurut tabel konsekuensi
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The Indonesian economy is largely dependent on the sea, given that nearly 70% of its territory consists of water. Maritime routes serve as vital means for entering and exiting ports. One significant shipping route is the West Surabaya Shipping Lane (APBS), which has a width of 150 meters and extends for 25 nautical miles. APBS consists of a new route and an old route that can be traversed by vessels with different draft sizes. APBS is traversed by various types of vessels, including passenger ships, ro-ro vessels, containerships, general cargo vessels, and bulk carriers. In 2019, there were an average of 9,624 vessels passing through APBS annually, or approximately 802 units per month. Container carriers and general cargo vessels were the most frequent types. However, the risk of ship collisions with offshore platforms in the Madura Strait has increased due to the large size of vessels and adverse maritime conditions. There are offshore platforms along the APBS, particularly in the exit or entrance routes near Karang Jamuang Island. The collision of Kodeco Energy Ltd's KE40 vessel with a platform in the Java Sea in 2010 resulted in significant damage and losses in oil and gas production. With the increasing number of vessels passing through APBS, the risk of similar accidents also rises. Therefore, the analysis of offshore structure integrity becomes crucial to ensure the strength
and reliability of structures against potential extreme ship collisions that could threaten their function and integrity. Factors such as environmental conditions, types of operating vessels, location, types of offshore platforms, and navigational failures should be considered in the
analysis of offshore structure integrity. The aim is to analyze the structure's capacity to meet the established design objectives and prevent strength reduction or structural failure that could affect its function. The quantitative method Collision Risk Assessment of Shipping Hazard (CRASH) was used to calculate the frequency, resulting in a frequency value of 0.0000016 for drifting vessel collision scenario and 0.000145 for head-on collision scenario, both falling into category 3. Furthermore, the consequence calculation for the 600 collision load indicates the potential for local damage to the WHP-C platform. The analysis of consequences reveals a probability of structural failure of 0.596 or 60% when subjected to a 600 collision load, falling into category 5 according to the consequence table.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Analisis Risiko, APBS, CRASH, kecelakaan kapal, oil platform, APBS, CRASH, risk analysis, ship collision, oil platform
Subjects:	H Social Sciences > HD Industries. Land use. Labor > HD61 Risk Management T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Aghfirli Damian Ravizqi
Date Deposited:	27 Jul 2023 02:49
Last Modified:	27 Jul 2023 02:49
URI:	http://repository.its.ac.id/id/eprint/100069

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