Abstract
Muin, M.; Karjadi E.A.; Yuanita, N., and Yusuf, I.Y.A., 2019. Application of a 3D non-orthogonal ocean circulation and sediment transport model on pipeline risk assessment due to dredging activity in West Java, Indonesia. In: Lee, J.L.; Yoon, J.-S.; Cho, W.C.; Muin, M., and Lee, J. (eds.), The 3rd International Water Safety Symposium. Journal of Coastal Research, Special Issue No. 91, pp. 1-5. Coconut Creek (Florida), ISSN 0749-0208.A three-dimensional non-orthogonal boundary fitted ocean circulation and sediment transport model (MuSed3D) was employed to conduct a risk assessment of Perusahaan Gas Negara (PGN) pipeline due to dredging activities in Banten Province, West Java, Indonesia. The pipeline starts from Bekasi Jakarta and ends in Maringgai Lampung, Indonesia. Dredging activities will change ocean circulation in the adjacent area, which can cause erosion or deposition along the pipeline. As a result, the erosion along the pipeline can increase the risk of pipeline failure. The model was run using wind, tidal forcing, and river discharge data to obtain water velocity and sedimentation processes along the pipeline. Wave hindcasting and transformation were also conducted to obtain wave height and period along the pipeline in nearshore region. The simulation results indicate that the dredging activities will increase the risk of pipeline failure at certain location on the pipeline.
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