
https://youtu.be/Q9ZYhq6lNDA
Video
HS2 Section C1 - Chiltern Tunnel Cross Passages Grouting
Keller, along with JV partner VSL, are working in the Chiltern Tunnel pregrouting the cross passages that will service the two tunnels carrying HS2 trains under the Chiltern Hills. Watch as we carry out fissure grouting to reduce water ingress during their excavation.
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