| 摘要 |
PROBLEM TO BE SOLVED: To provide a dredging control method of a dredger and a device thereof capable of automatically controlling the dredger and the equipment thereof to increase efficiency of dredging work and at the same time, carrying out labor saving. SOLUTION: A dredger 10 is propelled while adjusting contact pressure of a drag head 12 on the front end by bearing a drag arm on a swell compensator 15, and sludge, etc., in the ocean floor bed 16 are sucked with the dredge head 12 by means of a dredge pump 17 to carry out dredging. In that case, a scheduled course SC with high efficiency is set on the basis of data of the ocean floor bed obtained from observation ship, etc., 36, speed of the dredger 10 is controlled in accordance with depth variations along the scheduled course SC to make constant depth control and, at the same time, the contact pressure of the drag head 12 is controlled by the number of revolutions of the dredge pump 17 and the swell compensator 15 to make constant sludge content control to carry out dredging.
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