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GLDD Coastal & Dredging Laboratory

Texas A&M University College of Engineering

Laboratory Measurement of Forces on a Dredge Cutter Head

DR Young, RE Randall

Laboratory Measurement of Forces on a Dredge Cutter Head

2009

Dredge cutting forces produced by the movement through the sediment have been measured with the laboratory dredge carriage located at the Haynes Coastal Engineering Laboratory. The sediment bed that was used for the dredging test was considered to be relatively smooth and the sediment used was sand with ad 50= 0.27 mm. Forces on the dredge carriage were measured using five 13.3 kN (3000 lb) one directional load cells placed on the dredge ladder in various places so the transmitted cutting forces could be obtained. The objectives for this study were to determine the vertical, horizontal, and axial forces that are produced by the cutterhead while testing. So, to find these cutter forces, a static analysis was done on the carriage by applying static loads to the cutterhead in the vertical, horizontal, and axial directions, and for each load that was applied, readings were taken for all five of the load cells. Then …

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