Tunnel example for road project by Malyar Talash
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Transcript of Tunnel example for road project by Malyar Talash
05/02/2023
Example of Tunnels
Prepared by: Mohammad KarimiUnder the Supervision of: Eng. Malyar Talash Road Design Engineer/NRAP/MoPW Kabul-Afghanistan Emails: [email protected] [email protected] Mob: 0093786575033
A tunnel is an underground passage through a mountain, beneath a city or under a waterway.
It may be for pedestrians and/or cyclists, general road traffic, motor vehicles , rail traffic, or for a canal. Some tunnels are constructed purely for carrying water (for consumption, hydroelectric purposes or as sewers); others carry services such as telecommunications cables.
Tunnel Description:
Made into natural material (rocks) Empty inside Carry the loads itself Both ends are open to atmosphere Generally horizontal Thick walled structure looks like cylinder
Tunnel Section for Swelling Ground
1- Digging section2- Support3- Swelling section4- Pressurized area5- Flow direction of water
Methods of tunnels construction:
Tunnel Construction using Drill-and-Blast Method
Photo Illustration to support the teaching of the topic onTunnel Construction
Entrance arrangement to the tunnel portal for the 3.7km long TaiLam Tunnel of Route 3 at Kam Tin as seen in early 1996. Tai Lam Tunnel consists two main tunnels, each measures 15.5m wide and 10.5m high, and a 950m long servicing duct for ventilation and other supply purposes in between the main tunnels.
Tunnel Construction using Tunnel Boring Machine (TBM)
Tunnel Construction using Cut-and-Cover Method
Tunnel Construction using Immersed Tubes
Tunnel Construction Final Finishes and Fitting-out