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Large hole opens up above HS2 tunnel
6 Metres in diameter and 5 metres deep, the sinkhole is repotedly over an already tunneled part of HS2. This latest event adds up to previous `buble pools` events.
One of the previous `bubble pool` events
https://www.telegraph.co.uk/news/2023/05/14/large-hole-opens-up-above-hs2-tunnel/
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://www.telegraph.co.uk/news/2023/05/14/large-hole-opens-up-above-hs2-tunnel/
Large hole opens up above HS2 tunnel
www.telegraph.co.ukCampaigners say hole proves it's 'time to stop digging' but HS2 say opening likely linked to 'pre-existing ground conditions'