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Keywords:
CHANNEL TUNNEL,
ENGLISH CHANNEL,
SANGATTE,
SHAKESPEARE,
CLIFF,
GIE TRANSMANCHE CONSTRUCTION,
FRANCE,
UK,
TUNNELS,
CHANNEL TUNNEL,
TOPOGRAPHY,
MEASUREMENT,
SATELLITES,
GYROTHEODOLITES,
INSTRUMENTS,
COMPUTERS,
SYSTEMS,
ACCURACY,
ALIGNMENT,
TUNNELLING,
UNDERWATER,
DRIVING,
SURVEYORS,
TBM,
BORING,
MACHINERY,
MAPS,
GLOBAL,
POSITIONING,
GPS,
GEOMETRY,
SHAFTS,
MODULES,
RECALIBRATION,
CORRECTIONS
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© Thomas Telford and ICE
1994
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