OPEN-CUT CONSTRUCTION METHOD FOR BURYING PIPELINE

摘要

PROBLEM TO BE SOLVED: To provide a construction method for open-cutting with simple and rapid work. SOLUTION: In this open-cut construction method in the case of burying a new pipe in the ground, a surface layer A of a paved part is cut with a rotary cutting edge 7 that can bite in an upward open angle state into the surface layer A. After removing the cut surface layer A, filling material such as crushed stones and gravel at least in a base/subbase course B positioned under the surface layer A is sucked to form an open-cut hole.