HS2 Copthall Green Tunnel

Storbritannien

A Mapei system has been used to protect Copthall Green Tunnel – an 880-metre tunnel being constructed by Skanska Costain STRABAG Joint Venture (SCS JV).

Referens nr : 4072025

Kategori: TRANSPORT


Konstruktionstyp	The works are progressing well. Mapei waterproofing products and accessories were supplied by BlueBay Building Products Ltd.
Plats	Storbritannien
Typ av byggnad/anläggning	RAILWAY STATION, RAILWAY LINK, TUNNEL
Tillämpning	Copthall Green Tunnel sits between the twin bored Northolt Tunnel and the Colne Valley Viaduct. It is one of five shallower green tunnels on the HS2 route; its ‘cut and cover’ design significantly reduced the movement of soil and approx. 1.21 million cubic metres of excavated material were kept on site for reuse within the tunnel surroundings. This ensured a greener and better visual integration of the railway within the surrounding landscape. SCS’s role on the project was to construct a rigid concrete box structure within a 20m deep cutting, which ultimately formed the green tunnel for the HS2 trains. This was constructed using steel reinforcement and in-situ concrete to form the base, walls and roof of the structure. During the project the Kilnbridge team installed both the Mapeproof ALAP system and the Mapeproof AL 1200 AP system to the base and walls.
Typ av tillämpning	Vattentätning, Underjordskonstruktioner/tunnel och gruvindustri
Entreprenör	Skanska Costain STRABAG Joint Venture (SCS JV)
Installationsföretag	Kilnbridge team
MAPEI-distributör	BlueBay Building Products Ltd

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