| 摘要 |
PROBLEM TO BE SOLVED: To provide a protection structure of a hydraulic hose and a protection work method for the hydraulic hose using the protection pipe at a civil engineering site and a construction work site where its unbreakable inner hydraulic hose can be visually recognized.SOLUTION: There is provided a hydraulic hose protection structure at a civil engineering site and a construction work site that comprises a movable hydraulic-pressure generating device, a hydraulic-pressure operation equipment that can run while being spaced apart from the hydraulic-pressure generating device and operated by hydraulic-pressure received from the hydraulic-pressure generating device, a hydraulic-pressure hose connecting the hydraulic-pressure generating device with the hydraulic-pressure operation equipment so as to cause the hydraulic-pressure to act on them, and a protection pipe 17 made of transparent flexible resin covering at least almost of the hydraulic-pressure hose in its longer direction while being inserted inwardly and having a plurality of axial projections 21 circumferentially arranged at an outer peripheral surface 19. |
