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Citation:
　H. E. Lee,M. S. Liew,N. H. Mardi,et al.Development of Jacket Platform Tsunami Risk Rating System in Waters Offshore North Borneo[J].Journal of Marine Science and Application,2016,(3):307-320.[doi:10.1007/s11804-016-1367-5]
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Development of Jacket Platform Tsunami Risk Rating System in Waters Offshore North Borneo

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Title:
Development of Jacket Platform Tsunami Risk Rating System in Waters Offshore North Borneo
Author(s):
H. E. Lee1;  M. S. Liew2;  N. H. Mardi3;  K. L. Na4;  Iraj Toloue1;  S. K Wong4
Affilations:
Author(s):
H. E. Lee1;  M. S. Liew2;  N. H. Mardi3;  K. L. Na4;  Iraj Toloue1;  S. K Wong4
1. Offshore Engineering Centre, Universiti Teknologi PETRONAS, 32610 Perak, Malaysia;
2. Faculty of Geoscience and Petroleum Engineering, Universiti Teknologi PETRONAS, 32610 Perak, Malaysia;
3. Department of Civil Engineering, Univerisiti Tenaga Nasional, Selangor, 43650, Malaysia;
4. Department of Civil & Environmental Engineering, Universiti Teknologi PETRONAS, 32610 Perak, Malaysia
Keywords:
finite element analysis;  North Borneo; jacket platforms;  Manila Trench;  seaquake;  SACS;  TUNA-M2; t sunami simulation;  risk rating system;  risk rating model
分类号:
-
DOI:
10.1007/s11804-016-1367-5
Abstract:
This work details the simulation of tsunami waves generated by seaquakes in the Manila Trench and their effect on fixed oil and gas jacket platforms in waters offshore North Borneo. For this study, a four-leg livingquarter jacket platform located in a water depth of 63m is modelled in SACS v5.3. Malaysia has traditionally been perceived to be safe from the hazards of earthquakes and tsunamis. Local design practices tend to neglect tsunami waves and include no such provisions. In 2004, a 9.3Mw seaquake occurred off the northwest coast of Aceh, which generated tsunami waves that caused destruction in Malaysiatotalling US$ 25 million and 68 deaths. This event prompted an awareness of the need to study the reliability of fixed offshore platforms scattered throughout Malaysian waters. In this paper, we present a review ofresearch on the seismicity of the Manila Trench, which is perceived to be high risk for Southeast Asia. From the tsunami numerical model TUNA-M2, we extract computer-simulated tsunami waves at prescribed grid points in the vicinity of the platformsin the region. Using wave heights as input, we simulate the tsunami using SACS v5.3structural analysis software of offshore platforms,which is widely accepted by the industry. We employ the nonlinear solitary wave theory in our tsunami loading calculationsfor the platforms, and formulatea platform-specific risk quantification system. We then perform an intensive structural sensitivity analysis and derive a corresponding platform-specific riskrating model.

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Memo

Memo:
Received date: 2015-12-8;Accepted date: 2016-2-10。
Foundation item: Universiti Teknologi PETRONAS Research Grant (No. 0153B2-A44)
Corresponding author: H. E. Lee,E-mail:aaronlhe@outlook.com
Last Update: 2016-09-13