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HS2 Chilterns TBM overcame difficult geology and clogged slurry pipes to reach finish line
Digital Edition: HS2 Chilterns TBM overcame difficult geology and clogged slurry pipes to reach finish line
High Speed 2’s (HS2’s) Chilterns tunnel boring machine (TBM) struggled through the final stretch of its 16km drive as slurry pipes became clogged with clay, officials told NCE.
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