| 摘要 |
PROBLEM TO BE SOLVED: To adjust a sedimentary shape of sedimentary materials which are used to construct an artificial structure, by controlling a door opening motion of a full-open type barge without depending on a worker's experience or intuition, and suppress generation of an extra construction cost.SOLUTION: When sedimentary materials 30 loaded in a barge 10 are sequentially thrown in from a bottom 10a, a position in a Z direction (height direction) of the barge 10 is gradually displaced. A thrown-in amount of the sedimentary materials 30 per unit time is calculated based on a displacement quantity &Dgr;Z of the position in the Z direction of the barge 10. A door opening motion of the bottom 10a of the barge 10 is controlled based on the calculated thrown-in amount per unit time, whereby an actual thrown-in amount is adjusted without depending on a worker's experience or intuition. Accordingly, the thrown-in amount of the sedimentary materials 30 can be effectively adjusted so that the sedimentary shape of the sedimentary materials 30 thrown into a bottom of water can get close to a target shape. Generation of an extra construction cost can be suppressed. |
