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

수조실험을 통한 해저지반 굴삭용 워터젯 장비의 성능평가에 관한 연구

  • Received : 2015.09.10
  • Accepted : 2015.12.17
  • Published : 2015.12.31


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.


Subsea trenching machine;Waterjet trenching;ROV trencher;Trenching depth;Trenching speed


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