DISCUSSION: THE TYNE TUNNEL: 1/ PLANNING OF THE SCHEME. 2/ CONSTRUCTION OF THE MAIN TUNNEL

Keywords: TUNNELS, ROADS, SHIELDS, REGIONS, PLACING, AIR, INDUSTRIAL, LESIONS, ESCALATORS, OPERATION, SAFETY, WORKS, VENTILATION, DUCTS, AUTOMATIC, UNDERWATER, PLANNING, COSTS, DRIVING, DEVELOPMENT, DECKS, SICKNESS, HEALTH, PEDESTRIANS, MANAGEMENT, HAZARDS, GROUND, PILOT, SEMI TRANSVERSE, FLOW, TUNNELLING, CONSTRUCTION, CONDITIONS, SHIELD DRIVEN, PILES, COMPRESSED, DECOMPRESSION, BONES, CYCLISTS, ADMINISTRATION, ACCIDENTS, TREATMENT, ALUMINIUM, SYSTEMS, PRESSURE, SUBAQUEOUS, TYNE, UK