| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for quickly executing cutting work and cutting slope face treatment work.SOLUTION: A plurality of longitudinal directional divided construction zones A1, A2 and A3 are set in the vertical direction of a natural ground slope face of a steep slope of a cutting object by dividing the natural ground slope face into a plurality of portions like widths w1, w2 and w3, and a cutting slope face A is formed by cutting downward from above for each of these longitudinal directional divided construction zones. Cutting slope face treatment is executed to the cutting slope face A of the longitudinal directional divided construction zone A1, and the cutting work is executed to the longitudinal directional divided construction zone A2 in parallel with it. The work is executed by using a processing machine supported by a wire, and an anchor installing process is executed before forming a slope frame in the natural ground slope face of the steep slope of exceeding gradability of the processing machine. Thus, the slope frame is easily formed in the case of an easily collapsible state in a deep place of the natural ground slope face of the steep slope. |
