HS2 completes 'green' tunnel

HS2 has completed its first 'green' tunnel, am 880m cut-and-cover tunnel at Copthall built by SCS (Skanska, Costain, Strabag) using 1.2m cubic metres of material excavated from nearby Northholt tunnel.

HS2 reveals first completed cut and cover ‘green’ tunnel in West Ruislip 

HS2 has revealed its first completed cut and cover tunnel, the 880m Copthall ‘green’ tunnel near West Ruislip.  The post HS2 reveals first completed cut and cover ‘green’ tunnel in West Ruislip  appeared first on New Civil Engineer.

India Tunnel Project Landslide Prompts Spoil Management Probe

Could spoil management have contributed to fatal landslide? Authorities investigate after at least three workers died at a major highway tunnel project in southern India.

‘Tunnels in eight years’: Shetland council votes to pursue fixed links

Councillors voted to pursue the idea of a tunnel between Yell and Unst, approving up to £200,000 to progress the project. The post ‘Tunnels in eight years’: Shetland council votes to pursue fixed links appeared first on Construction Management.

Final segment installed at problem HS2 green tunnel

Watch as last of 5,020 reinforced concrete segments goes in

Autonomous vision-based bridge and tunnel strike prevention system

Autonomous vision-based bridge and tunnel strike prevention system for improved safety and more efficient asset management.

B1M - Austria is Digging a Tunnel Like No Other 14062023

The B1M look at the "blast and drill" method used to create new curved tunnels to link existing highways up to a new suspension bridge in Linz, Austria

HS2 - Progress on HS2’s Copthall Green Tunnel (as Western portal is complete) 15062023

Engineers working on the HS2 project are celebrating progress as they have completed the western portal of the Copthall Green Tunnel. Located in Hillingdon, the 880m long tunnel structure sits between the twin bored Northolt Tunnel and the Colne Valley Viaduct.

Tech Tacular - Britain's New Super Mine. Constructing The Deepest Mine In Europe 15052023

This video provides details about the Woodsmith polyhalite mine near Whitby. The mine is set to go into production in 2027 and is costing around £6 billion and will create over 2,000 jobs for the local area

HS2 - How HS2's Burton Green Tunnel will enhance the local environment in Warwickshire 06042023

The 700-metre Burton Green Tunnel, located in Warwickshire, is beginning to take shape as construction is ramping up. The tunnel will follow the existing disused railway line in the area and a key feature of the tunnel is that it will include enhanced environmental features. These include tree planting, new footpaths and better connections to local woods.

When planning, what are the key engineering considerations to ensure structural integrity?