Analisis On Bottom Stability Struktur Platform Terpancang Dengan Konsep Berpindah

Askira, Alif Akbar (2021) Analisis On Bottom Stability Struktur Platform Terpancang Dengan Konsep Berpindah. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Moveable jacket platform dirancang dengan bentuk minimalis dan mudah didecommissioning sehingga dapat berpindah-pindah dan dapat beroperasi pada beberapa daerah operasi. Agar dapat beroperasi pada beberapa daerah operasi, moveable jacket platform harus dapat stabil pada kondisi tanah dan lingkungan yang berbeda. Penelitian ini akan menganalisis on bottom stability dari moveable jacket platform pada kondisi tanah dan lingkungan yang berbeda dengan menggunakan pedoman API RP 2A WSD dan API RP 2 GEO. Untuk mendapatkan hasil yang lebih optimal, penelitian ini akan membandingkan desain mudmat moveable jacket platform dan menentukan desain manakah yang paling stabil di beberapa daerah operasi. Analisis on bottom stability moveable jacket platform pada kondisi tanah yang berbeda menghasilkan bahwa nilai safety factor terkecil yaitu pada tanah very soft clay dengan nilai bearing capacity sebesar 2,72, sliding stability sebesar 14,84, dan overturning moment sebesar 5,81. Sedangkan analisis on bottom stability moveable jacket platform pada kondisi lingkungan yang berbeda menghasilkan nilai safety factor terkecil yaitu pada ketinggian gelombang 12 ft dengan niilai bearing capacity sebesar 2,71, sliding stability sebesar 10,53, dan overturning moment sebesar 3,65. Kemudian dari tiga jenis desain mudmat yang ada, moveable jacket platform model full mudmat merupakan model yang paling stabil pada beberapa daerah operasi karena dapat stabil pada jenis tanah dan lingkungan yang berbeda.
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The movable jacket platform is designed with a minimalist shape and easy to decommission so that it can be moved around and can operate in multiple operating areas. In order to operate in multiple operating areas, the moveable jacket platform must be stable under different soil and environmental conditions. This study will analyze on bottom stability of the moveable jacket platform in different soil and environmental conditions using the API RP 2A WSD and API RP 2 GEO guidelines. To get more optimal results, this study will compare the design of the movable jacket platform mudmat and determine the most stable design in several operating areas. Analysis of the on bottom stability movable jacket platform on different soil conditions resulted that the smallest safety factor value was on very soft clay soil with a bearing capacity value of 2.72, sliding stability of 14.84, and overturning moment of 5.81. While the analysis on the bottom stability movable jacket platform in different environmental conditions resulted that the smallest safety factor value was at a wave height of 12 ft with a bearing capacity value of 2.71, sliding stability of 10.53, and overturning moment of 3.65. And then, the moveable jacket platform full mudmat model is the most stable model in several operating areas because it can be stable on different soil types and environments.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Moveable jacket platform, on bottom stability, bearing capacity, sliding stability, overturning moment.
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38101-(S2) Master Thesis
Depositing User:	Alif Akbar Askira
Date Deposited:	14 Aug 2021 09:26
Last Modified:	14 Aug 2021 09:26
URI:	http://repository.its.ac.id/id/eprint/86442

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