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Grouting: Building connections between the HS2 Chiltern tunnels
High Speed 2s Chiltern tunnels run through permeable chalk requiring extensive ground treatment.
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://www.geplus.co.uk/features/grouting-building-connections-between-the-hs2-chiltern-tunnels-12-12-2023/
Grouting: Building connections between the HS2 Chiltern tunnels | Ground Engineering
www.geplus.co.ukHS2 Chiltern tunnels run through permeable chalk requiring extensive ground treatment. GE reports on grouting of the tunnel cross passages.