Studi Potensi Soil Liquefaction Di Rencana Lokasi Genting Oil Kasuri Papua Barat

Sasanti, Carolina Ardhylla (2015) Studi Potensi Soil Liquefaction Di Rencana Lokasi Genting Oil Kasuri Papua Barat. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Genting Oil Kasuri Pte. Ltd adalah operator yang dipersiapkan untuk mengembangkan Blok Kasuri. Terdapat tiga lokasi di Papua Barat yang dipilih yaitu, Katsuri, Sumuri dan Bintuni. Di lokasi studi tersebut menunjukan bahwa kondisi tanah sebagaian besar merupakan tanah dengan kandungan pasir yang sangat berpotensi terjadi soil liquefaction. Potensi soil liquefaction dievaluasi berdasarkan nilai Safety Factor (SF) yang merupakan perbandingan antara Cyclic Resistence Ratio (CRR) dan Cyclic Stress Ratio (CSR). Nilai CSR dihitung dari parameter gempa sedangkan data Standart Penetration Test (SPT) digunakan untuk menghitung nilai CRR. Hasil analisa menunjunkan dengan gempa magnitude 5 tidak berpotensi soil liquefaction, sedangkan pada magnitude 6, 6,5, 7 dan 7,5 mengalami soil liquefaction. Hal ini ditunjukan oleh nilai SF yang lebih kecil daripada 1. Setelah mengetahui lokasi studi mengalami soil liquefaction, selanjutnya memperkirakan kedalama settlement. Pada gempa dengan Mw 6 = 35.91 cm, Mw 6.5 = 39.15 cm, Mw 7 = 41.95 dan Mw 7.5 = 44.39. ======================================================================================================= Genting Oil Kasuari Pte. Ltd. is an operator pointed to expand Kasuari Block. There are three location chosen in West Papua; Katsuari, Sumuri, and Bintuni. Study in location area shows that its soil condition mostly are sand with potential of soil liquefaction. Soil Liquefaction potential evaluated based on the Safety Factor (SF) which is comparison between Cyclic Resistance Ratio (CRR) and Cyclic Stress Ratio (CSR). CSR value calculated by earthquake parameter, while the Standard Penetration Test (SPT) use to calculate CRR. Result show that earthquake with magnitude 5 is not potentially cause Soil Liquefaction, but earthquake with magnitude 6, 6.5, and 7.5 will cause Soil Liquefaction. This result based on SF with value less than 1.0. After Soil Liquefaction has been identified, then estimate depth of Settlement. It is gotten earthquake with Mw 6 = 35.91 cm, Mw 6.5 = 39.15 cm, Mw 7 = 41.95 cm, and Mw 7.5 = 44.39 cm.

Item Type: Thesis (Undergraduate)
Additional Information: RSKe 624.151 36 Sas s
Uncontrolled Keywords: Soil liquefaction, Safety factor, Cyclic resistence ratio (CRR)
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures
Divisions: Faculty of Marine Technology > Ocean Engineering > (S1) Undergraduate Theses
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 19 Feb 2018 03:54
Last Modified: 24 Aug 2018 06:49
URI: http://repository.its.ac.id/id/eprint/51291

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