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Underground structures

HS2 Chiltern tunnel

United Kingdom
Geotechnical modelling and ground risk assesments
    ALIGN (Bouygues Travaux Public, VolkerFitzpatrick & Sir Robert McAlpine JV)
    Jacobs Engineering Ingerop-Rendel Grimshaw Gall Zeidler LDA
    London - Birmingham

    Types of services

    Geotechnical modelling and ground risk assesments

    The Chilterns Tunnel is a 15.8km bored tunnel. There will be four vent shafts and one intervention shaft located along the proposed line of route – Chalfont St Peter, Chalfont St Giles, Amersham, Little Missenden and Chesham Road. Its southern portal is located near Maple Cross. Its site will also house a compound during construction with all material from the bored tunnel coming here to be treated prior to being used elsewhere along the line of route. The northern portal is adjacent to South Heath.

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