DISCUSSION OF PAPERS 6831 AND 6826. CLYDE TUNNEL: DESIGN, CONSTRUCTION AND TUNNEL SERVICES. CONSTRUCTIONAL PROBLEMS.

Keywords: TUNNELS, CONSTRUCTION, CAST, DRIVING, TREATMENT, AIR, BONES, TRAFFIC, SECONDARY, STRAIN, WALLS, SERVICES, IRON, GROUND, HAZARDS, HEALTH, LESIONS, SHIELDS, DECOMPRESSION, GAUGES, DESIGN, PROBLEMS, LININGS, CONDITIONS, COMPRESSED, WORKERS, TUNNELLING, GIRDERS, GROUTS, PVC, CLYDE, SCOTLAND, UK