Requirements of Good Ventilation System in Tunnels
A good tunnel ventilation system should meet the following requirements:
1. It should reduce the dust produced by the tunnel activities to a safe limit.
2. It should quickly clear the fumes generated by blasting from the working face.
3. A good ventilation system should be such that, it can prevent the accumulation of dangerous fumes along the length of the tunnel.
4. It should give a working environment at the face of the tunnel.