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http://dx.doi.org/10.5574/KSOE.2015.29.6.470

Study on Performance Evaluation of Subsea Waterjet Trenching Machine Using Water Tank  

Na, Kyoung-Won (Ocean Science and Technology School, Korea Maritime and Ocean University)
Jo, Hyo-Jae (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Baek, Dong-Il (Department of Civil Engineering, Korea Maritime and Ocean University)
Hwan, Jae-Hyuk (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Han, Sung-Hoon (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Jang, Min-Suk (Ocean Science and Technology School, Korea Maritime and Ocean University)
Kim, Jae-Heui (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Ocean Engineering and Technology / v.29, no.6, 2015 , pp. 470-474 More about this Journal
Abstract
The demand for subsea cables and pipelines that transfer marine energy resources onshore has recently increased. Laying these underground after trenching is one engineering method to stabilize exposed subsea cables and pipelines. This experimental study found the optimum conditions for operating two types of waterjet arms mounted on an ROV trencher. A waterjet arm for trenching the seabed was scaled down at a ratio of 1:6, and a comparative analysis was conducted using diverse parameters. The results of this research provide a practical fundamental database to assist in making decisions about the ROV trencher performance in advance.
Keywords
Subsea trenching machine; Waterjet trenching; ROV trencher; Trenching depth; Trenching speed;
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