FLOATING PREVENTIVE CONSTRUCTION METHOD FOR BURIED PIPELINE

PROBLEM TO BE SOLVED: To provide a floating preventive construction method for a buried pipeline, which is applied to the case of laying a shallow buried pipeline, especially the case where there is water in the periphery of the pipeline, or the case of laying a shallow buried pipeline using a submerged construction method. SOLUTION: In this floating preventive construction method for a buried pipeline which is formed by a buried pipe 1 and a gutter-like metal plate 2 and has a small length between the top end of the pipe and the ground surface, the inside diameter of the gutter-like part 21 is substantially equal to the outside diameter of the buried pipe 1, in the gutter-like part 21 of the gutter-like metal plate 2, both side edges 22, 22' in the axial direction are extended to form outward bent blade parts 23, 23', the gutter-like part 21 is put on the outer peripheral surface of the ground surface side of the buried pipe 1, and the blade parts 23, 23' are buried to be substantially horizontal to the ground surface.