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.
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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 (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| 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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