TUNNEL CLEANING METHOD

A METHOD HAS BEEN DEVISED TO SCRUB TUNNEL SURFACES CLEAN BY USING ROTATING BRUSHES, WATER AND TUNNEL WASHING SOAP. PROPORTIONAL ELECTRO-HYDRAULIC CONTROL VALVES PROVIDE ACCURATE CONTROLS FOR THE OPERATOR TO POSITION BOOM MOUNTED BRUSH HEADS ON THE TUNNEL SURFACES. THE FOUR AXLE, 48,000 GVW CARRIER VEHICLE TRANSPORTS 1,000 GALLONS OF WATER, 700 GALLONS OF SOAP, OPERATOR AND DRIVER CABS, AS WELL AS ALL HYDRAULIC COMPONENTS NEEDED TO ACCOMPLISH THE TASK OF TUNNEL WASHING. SINCE THE SPEED OF OPERATION IS RELATED TO THE AMOUNT OF CONTAMINANT DEPOSITED AND THE SURFACE CONDITION OF THE TUNNEL, THE EFFECTIVE FORWARD TRAVEL SPEED OF THE WASHER VARIES UP TO A TOP SPEED OF 143 FT/MIN. TUNNEL OPERATING PERSONNEL ARE PLEASED WITH THE RESULTS AND STATE THAT THIS METHOD OF CLEANING IS THE BEST THEY HAVE TRIED.

• Corporate Authors:

  California Department of Transportation

  1120 N Street
  Sacramento, CA  United States  95814
• Authors:
  • Apperson, R W
• Publication Date: 1973-6-30

Subject/Index Terms

• TRT Terms: Cleaning; Electrohydraulic mechanisms; Films (Coatings); Maintenance practices; Surfaces; Tunnels
• Old TRIS Terms: Cleaning procedures; Electro-hydraulic method; Surface film
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00218098
• Record Type: Publication
• Source Agency: California Department of Transportation
• Report/Paper Numbers: Final Rpt
• Files: TRIS, STATEDOT
• Created Date: May 24 1974 12:00AM