CONTINUOUS LAYING OF PIPES OF LARGE DIAMETERS

摘要

A method of and apparatus for the continuous laying of pipe utilizing a plurality of counterbalanced pipe-laying vehicles wherein each pipe-laying vehicle has a movable-arm lifting crane for maneuvering pipe and a movable-arm balancing crane to effect counterbalancing during pipe-laying operation. The lifting arm and the balancing arm are supported on opposite sides of the pipe-laying vehicle such that the lifting arm may be attached to a pipe and the balancing arm may be attached to a counterweight. A second self-propelled vehicle is positioned adjacent to each pipe-laying vehicle such that the movable-arm balancing crane can be attached thereto so that the attached vehicle functions as a counterweight for the pipe-laying vehicle during pipe-laying operation.