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Keywords:
CHANNEL TUNNEL,
STUDIES,
TUNNELLING,
RAILWAYS,
CHALK,
BORED,
FEASIBILITY,
IMMERSED,
CARS,
TUNNELS,
CONDITIONS,
LOWER CHALK,
DRILLING,
VEHICLES,
TUBES,
TRAINS,
PROJECTS,
CONDITIONS,
ROADS,
GEOLOGY,
TRAFFIC,
BOREHOLES,
BRIDGES,
COSTS,
ECONOMICS,
CHANNEL TUNNEL STUDY GROUP,
ENGLISH CHANNEL,
CHANNEL,
CHANNEL TUNNEL,
FRANCE,
UK
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© Thomas Telford and ICE
1962
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