Author(s): Razek Abdelnour; Andrew Liddiard; Stephane Dumont
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Abstract: This paper describes an alternative for the removal and re-deployment of an ice boom by sinking and later re-floating the booms. The method consists of injecting a predetermined amount of water into each pontoon and buoy without allowing the air to escape. The boom is re-floated simply by opening the valve and letting the water escape from each pontoon. The results of field tests, where one entire section of boom was sunk in Lac St. Pierre and re-floated 19 weeks later under varying environmental conditions, provided data for assessing the feasibility, the cost and the implementation of the proposed method. A case study where the costs and benefits from sinking and refloating three Canadian Coast Guard (CCG) ice booms, Yamachiche, Lanoraie and Lavaltrie located on the St. Lawrence River rather than their removal was carried out.
Year: 2002