Analisis Respon pada Trenched Pipeline akibat Anchor Impact dengan Variasi Massa Jangkar dan Jenis Tanah (Studi Kasus: Pipeline di Teluk Jakarta)

Arthamevia, Kania (2025) Analisis Respon pada Trenched Pipeline akibat Anchor Impact dengan Variasi Massa Jangkar dan Jenis Tanah (Studi Kasus: Pipeline di Teluk Jakarta). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dengan meningkatnya pertumbuhan ekonomi global, kebutuhan energi, terutama minyak dan gas alam, terus meningkat. Pipeline bawah laut menjadi pilihan utama transportasi minyak dan gas karena kapasitas angkut besar, investasi rendah, dan sistem pengendalian efisien. Namun, pipeline ini menghadapi tantangan operasional, terutama risiko deformasi akibat benturan jangkar (anchor impact), yang dapat memengaruhi integritas strukturalnya. Penelitian ini menganalisis deformasi pipeline akibat anchor impact dengan variasi massa jangkar dan jenis tanah pengubur menggunakan metode numerik Metode Elemen Hingga (Finite Element Method) yang dimodelkan dalam software ABAQUS. Simulasi dilakukan dengan massa jangkar 5, 10, dan 15 ton serta variasi tanah lempung, pasir, dan kerikil. Hasil menunjukkan peningkatan massa jangkar meningkatkan deformasi, tegangan, dan regangan pipeline, dengan respon maksimum pada jangkar 15 ton. Jenis tanah juga berperan penting, di mana tanah kerikil menghasilkan dampak tertinggi, sedangkan tanah lempung meredam energi lebih baik. Analisis dent ratio menunjukkan semua kasus memiliki nilai di bawah 5% dari diameter pipa, dikategorikan sebagai kerusakan ringan (D1) tanpa indikasi kebocoran (R0). Dengan demikian, pipeline tetap dalam kondisi aman tanpa kegagalan struktural signifikan.
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With the increasing growth of the global economy, energy demand, particularly for oil and natural gas, continues to rise. Subsea pipelines are the preferred choice for oil and gas transportation due to their large capacity, low investment, and efficient control systems. However, these pipelines face operational challenges, primarily deformation risks caused by anchor impact, which can affect their structural integrity. This study analyzes pipeline deformation due to anchor impact with variations in anchor mass and burial soil type using the Finite Element Method (FEM) modeled in ABAQUS software. Simulations were conducted with anchor masses of 5, 10, and 15 tons, along with clay, sand, and gravel burial soil variations. Results show that increasing anchor mass leads to greater pipeline deformation, stress, and strain, with maximum response occurring at 15-ton anchors. Soil type also plays a crucial role, with gravel causing the highest impact, while clay absorbs energy more effectively. Dent ratio analysis indicates that all cases remain below 5% of the pipe’s outer diameter, categorized as minor damage (D1) with no leakage indication (R0). Thus, the pipeline remains structurally safe without significant failure.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Pipeline, Anchor Impact, Anchor Mass, Trenching Depth, Finite Element Method
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures T Technology > TJ Mechanical engineering and machinery > TJ930 Pipelines (General). Underwater pipelines. T Technology > TN Mining engineering. Metallurgy > TN879.5 Petroleum pipelines
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Kania Arthamevia
Date Deposited:	03 Jun 2025 07:34
Last Modified:	03 Jun 2025 07:34
URI:	http://repository.its.ac.id/id/eprint/119123

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