METHOD AND DEVICE OF CLEANING INNER WALL FACE OF TUNNEL

PURPOSE:To provide a cleaning method by which a carrier can travel on a narrow inspection road and the cleaning work is efficiently carried out and simplified and hence various costs are reduced. CONSTITUTION:A cleaning car 2 is driven to wash the inner wall face 1 of a tunnel by use of a brush 13 and washing water supplied from a water tank 6a provided on the cleaning car 2. When the cleaning car 2 has reached a water supply position installed in the tunnel, washing water is supplied to the water tank 6a of the cleaning car 2. That is, the cleaning car is detected by sensors 7, 8 when it has reached the branch pipe position and a valve 4 is opened and washing water is replenished through a water feed pipe 3, a water feed branch pipe 5, and the water tank 6a on the cleaning car 2 in this order. When the filled state of the water tank 6a is detected by a water level detecting sensor 11, the valve 4 is closed and the water supply into the water tank 6a is stopped. When the cleaning car has reached the next water supply position, washing water is again replenished.