| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-speed traveling washing method and high-speed traveling washing device for tunnel, capable of washing a wall surface of a tunnel, rain markers on a road surface or the like while traveling at a legally lowest traveling speed without needing a traffic regulation or causing environmental contamination. SOLUTION: In this tunnel washing method for washing the inside of the tunnel Tn while traveling at high speed in the tunnel, a high-pressure washing device 20 mounted on a vehicle body 1A travelable at least at a legally lowest traveling speed or more and capable of spraying high-pressure hot water from a high-pressure washing nozzle 21 is controlled by a control device 31 preliminarily storing data of the tunnel so that the spraying direction of the high-pressure washing nozzle 21 is matched to a washing object based on the data, and the distance between the high-pressure washing nozzle and the washing object is kept in a predetermined range, and high-pressure hot water containing bubbles is sprayed from the nozzle 21 to wash the object. COPYRIGHT: (C)2006,JPO&NCIPI
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