Download - Metro Tunnels Programme 3D Visualisation
Transcript
Tunnels & Stations Programme 3D Visualisation
By David Moloney
Cut & C
over
Cut & Cover
Tunne
l
Tunnel
Tunnel
Start
Stations with Diaphragm walls
Station Box
Tunnel Boring Machine
Cutting Head rotates
Precast segments form rings
Excavated material removed by conveyor belt
Precast Tunnel SegmentsTunnel ring comprises 7 precast concrete segments and 1 key. Ring length 1.5 m long. Tunnelling average progress 15 m per 24 hour day.
Tunnel Boring Machine
Tunnel Boring Machine
Tunnel Approach
Any questions
By David Moloney