| 摘要 |
PROBLEM TO BE SOLVED: To provide a water bottom ground excavator which can be effectively moved even on a soft water bottom ground without excessively harming the ground surface, and to provide a water bottom ground excavation system using the same.SOLUTION: The water bottom ground excavator includes a travelling auxiliary body 14 having a spud 12 constructed to be retractably movable toward a water bottom ground 2 and a sliding mechanism 13 for sliding the spud 12 in the horizontal direction. On the soft water bottom ground 2, the spud 12 is moved to elongate until its front end is embedded into the water bottom ground 2 and in this state the spud 12 is slid in the horizontal direction by the sliding mechanism 13, to move a machine body 6 in the opposite direction to the sliding direction. On the relatively hard water bottom ground 2, the machine body 6 is moved by a crawler 4. |
