SELF-TRAVELING DREDGER ON WATER BOTTOM AND DREDGING METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To increase dredging efficiency by continuous dredging work. SOLUTION: A base body (main body) is formed of an inside frame 1 and an outside frame 2 relatively transferring them forward and backward and support legs 3, 3,... are equipped at respective frames 1, 2 move up and down. A cutter boom is formed bendably and extensively with a boom front part 5 and a boom rear part 6 rotatably connected to extend forward from the inside frame 1 and to be rotatable both laterally and vertically. A dredging cutter 9 is equipped at the front end of the cutter boom. The cutter boom is turned sideways to laterally transfer the dredging cutter 9. The inside frame 1 and the outside frame 2 are alternately advanced by the relative movement. When the inside frame 1 is advanced, the cutter boom is bent and the dredging cutter 9 is advanced by the forward movement of the inside frame 1. When the outside frame 2 is advanced (when the inside frame 1 is suspended), the cutter boom is stretched and thereby the dredging cutter 9 is advanced.