Muddy ground for transport machine of muddy ground for transport machines and boring device

摘要

PROBLEM TO BE SOLVED: To simplify the movement, and to perform the economical and efficient work by providing a horizontally arranged platform, a first buoyant body, an elevating/lowering means for the first buoyant body, a second buoyant body, a horizontally moving means for the second buoyant body, a turning means for the second buoyant body, and a spike for preventing slip. ;SOLUTION: After a second buoyant body 8 is separated from the ground, the second buoyant body 8 is moved forward of a platform 1 by a horizontally moving means 13. First buoyant bodies 4, 4 are elevated at the place, i.e., the platform 1 is lowered. The second buoyant body 8 is lowered to the ground, and the buoyant body is separated from the ground. The platform 1 is advanced by the horizontally moving means 13. During the advancement, the second buoyant body 8 is slipped, and can not be advanced, then, a spike 14 for longitudinal movement is lowered by an elevating/lowering means 14a, and driven into the muddy ground. Slip can be prevented to allow advancement. Progressive grounding of the first and second buoyant bodies, and advancement/retreat of the second buoyant body allows the stable traveling on the muddy ground.;COPYRIGHT: (C)1998,JPO