XIII TH WORLD CONGRESS, TOKYO 1967: ROAD TUNNELS COMMITTEE

SHAPE AND DIMENSIONS OF TRANSVERSE SECTION ARE DISCUSSED IN TERMS OF: (1) USEFUL SPACE NECESSARY TO TRAFFIC, (2) VENTILATION SYSTEM USED, (3) GROUND TERRAIN ENCOUNTERED, AND (4) CONSTRUCTION PROCESSES. LONGITUDINAL PROFILES OF TUNNEL DESIGN ARE DISCUSSED FOR MOUNTAIN TUNNELS, URBAN UNDER-RIVER TUNNELS AND THE GENERAL DISADVANTAGES OF HIGH RAMPS. TUNNEL DIMENSIONING AND CIVIL ENGINEERING QUESTIONS ARE DISCUSSED IN RELATION TO: LEVEL TRACING, CONCRETE COATING OF VAULT AND PIERS, AND COATING IMPERVIOUSNESS. THE FOLLOWING VENTILATION QUESTIONS ARE DISCUSSED: (1) THE EVOLUTION OF REAL CARBON MONOXIDE EMISSION BY VEHICLES ACTUALLY IN SERVICE, (2) THE RAMPS AND THE ALTITUDE INFLUENCE ON THESE EMISSIONS AND ON THOSE OF DIESEL SMOKE, AND (4) THE RELATION BETWEEN POLLUTION, LIGHTING AND VISIBILITY DISTANCE. THE FOLLOWING TYPES OF ROADWAYS IN TUNNELS ARE DISCUSSED: BARE CONCRETE ROADWAY, BITUMINOUS ROADWAY ON CONCRETE SLAB, AND BITUMINOUS ROADWAY ON BOTTOM LAYER. NUMEROUS TUNNELS OF THE FOLLOWING TYPES RECENTLY BUILT ARE DESCRIBED: TUNNELS WITH NATURAL VENTILATION, AND ARTIFICIALLY VENTILATED TUNNELS WITH LONGITUDINAL VENTILATION, TRANSVERSE VENTILATION, OR SEMI-TRANSVERSE VENTILATION. VARIOUS EQUIPMENT USED IN TUNNELS IS DESCRIBED FOR VEHICLE COUNTING, CARBON MONOXIDE DETECTORS, OPACIMETERS, SIGNALLING FITTINGS, FIRE FIGHTING EQUIPMENT, WALL LINING, LIGHTING, SOUNDPROOFING, MAINTENANCE, AND TRAFFIC CONTROL.

  • Supplemental Notes:
    • 927 Pp, 432 FIG, TABS
  • Publication Date: 1967

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  • Accession Number: 00235478
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 15 1994 12:00AM