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Keywords:
MOTT MACDONALD,
TRANSLINK JOINT VENTURE,
TUNNELS,
CHANNEL TUNNEL,
GEOLOGY,
ALIGNMENT,
SURVEYS,
SITE INVESTIGATION,
METHODS,
DATA,
CHALK,
GAULT,
CLAYS,
GAULT CLAY,
LOWER CHALK,
GEOPHYSICS,
BOREHOLES,
MARL,
CHANNEL TUNNEL,
ENGLISH CHANNEL,
CHANNEL,
UK,
EUROPE,
FRANCE
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© Thomas Telford and ICE
1992
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