Agustina, Caroline (2022) Risk Assessment Pada Pipa Bawah Laut Di PT. XYZ Akibat Pengaruh Jalur Baru Pelayaran Pelabuhan ABC (Studi Kasus: 32” South Sumatera - West Java Gas Pipeline Phase I Labuhan Maringgai – Bojonegara). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
PT. XYZ memiliki pipa transmisi yang cukup panjang pipa transmisi salah satunya yakni Pipa South Sumatera-West Java Gas Pipeline Phase I dengan Ruas Stasiun Penerima jalur Pagardewa-Labuhan Maringgai-Cilegon-Serpong. Namun ruas-ruas pipa yang terletak di Pipa SSWJ Phase I tersebut nantinya akan terkena dampak rencana pembangunan Pelabuhan ABC di dekat lokasi Perairan Bojonegara, Kabupaten Serang akibat perubahan jalur baru pelayaran. Oleh karena itu, keamanan pipa gas bawah laut menjadi fokus yang sangat diperhatikan dalam penelitian ini. Penelitian ini bertujuan untuk menilai risiko Pipa SSWJ Phase I karena adanya perubahan jalur baru pelayaran Pelabuhan ABC yang berpotensi menimbulkan risiko kerusakan pipa. Pada penelitian ini penulis melakukan risk assessment pada pipa di PT. XYZ akibat anchor dropping, anchor dragging, dan sinking (tenggelam) kapal. Berdasarkan penilaian risiko yang telah dilakukan pada semua risiko didapatkan bahwa tingkat risiko berada pada daerah yang dapat diterima (acceptable) dan pada zona ALARP (As Low as reasonably Practicable Risk). Berdasarkan hasil analisis menggunakan software Ansys Structural R21, nilai maksimal tegangan ekuivalen yang terjadi pada pipa akibat dropped anchor dapat diterima sesuai dengan standard ASME B31.8 tahun 2012. Atau tidak lebih dari 0,9 dari nilai SMYS (Specified Minimum Yield Stress) yaitu sebesar 4.05E+08 Pa. Berdasarkan hasil analisis Analytical Hierarchy Process (AHP), rekomendasi mitigasi pada sistem proteksi pipa bawah laut di masa datang adalah melakukan penguatan dengan Rock Beam, dengan hasil nilai persentase priority ranking sebesar 39 persen.
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PT. XYZ has a long transmission pipe transmission pipe, one of which is the South Sumatra-West Java Gas Pipeline Phase I with the Pagardewa-Labuhan Maringgai-Cilegon-Serpong Line Receiving Station. However, the pipeline segments located in the SSWJ Phase I Pipeline will later be affected by the abc port development plan near the bojonegara waters site, Serang Regency due to changes in the new shipping lanes. Therefore, the safety of underwater gas pipelines became a very concerned focus in this study. This study aims to assess the risk of the SSWJ Phase I Pipeline due to changes in the new ABC Port shipping line that have the potential to pose a risk of pipeline damage. In this study, the author conducted a risk assessment on pipes at PT. XYZ due to anchor dropping, anchor dragging, and sinking (sinking) ships. Based on the risk assessment that has been carried out on all risks, it is found that the level of risk is in an acceptable area and in the ALARP zone (AS Low as reasonably Practicable Risk). Based on the results of the Analytical Hierarchy Process (AHP) analysis, mitigation recommendations on the underwater pipeline protection system in the future are strengthening with Rock Beam, with a priority ranking percentage value of 39 percent. Based on the results of the analysis using Ansys Structural R21 software, the maximum value of the equivalent voltage that occurs in the pipe due to dropped anchor can be received in accordance with the ASME B31.8 standard in 2012. Or no more than 0.9 of the SMYS (Specified Minimum Yield Stress) value of 4.05E +08 Pa.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKe 621.867 2 Agu r-1 |
| Uncontrolled Keywords: | Risk Assessment, DNVGL-RP-F107, DNV-RP-F111, Offshore Pipeline, AHP |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC1665 Offshore structures--Materials. T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Caroline Agustina |
| Date Deposited: | 12 Jul 2022 01:59 |
| Last Modified: | 26 Apr 2023 04:04 |
| URI: | http://repository.its.ac.id/id/eprint/94986 |
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