| 摘要 |
PROBLEM TO BE SOLVED: To provide an underwater construction device capable of improving a construction property and safety by checking a construction state, and a constructing method of the same.SOLUTION: An underwater construction device includes: a crane ship 1; a grab bucket 6 suspended closed to a sea bottom 34 by a crane body 3 of the crane ship 1; a transponder 12 provided on the grab bucket 6; a transducer 23 provided on the crane ship 1 and receiving an ultrasonic signal transmitted from the transponder 12; a scanning sonar 31 provided on the crane ship 1 and detecting a shape of the sea bottom 23; and display means for displaying a three-dimensional image of the sea bottom 34 detected by the scanning sonar 31. Therefore, suspension work is carried out while checking a position of the grab bucket 6 by the transducer 23, and a work situation can be checked in a three-dimensional image by the scanning solar 31 during work. |
