Category: Tunnels

Difference between Natural & Mechanical Ventilation in Tunnel

Difference between Natural & Mechanical Ventilation in Tunnel

Difference between Natural & Mechanical Ventilation in Tunnel Tunnel ventilation is a technique, that provides fresh air inside the tunnel and removes dust from the tunnel during and after construction. Following are the 6 difference between natural ventilation and mechanical ventilation in tunnel. Natural Ventilation 1. Natural ventilation is achieved by providing shaft at a … Continue reading Difference between Natural & Mechanical Ventilation in Tunnel

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Classification of Tunnel Drainage System

Classification of Tunnel Drainage System

Classification of Tunnel Drainage System Tunnel Drainage systems are classified as: (1) Drainage system provided at the time of construction or temporary drainage system.(2) Drainage system provided in completed tunnels or permanent drainage system. (1) Temporary Drainage System This is provided to remove groundwater from the tunnel at the time of construction. In this system, … Continue reading Classification of Tunnel Drainage System

Methods of Ventilation in Tunnels

Methods of Ventilation in Tunnels

Methods of Ventilation in Tunnels Following methods are implemented for ventilation in tunnels: Natural MethodMechanical Method Methods of Ventilation in Tunnels 1. Natural Ventilation When a tunnel receives fresh air and automatically removes the dust without the use of mechanical appliances, this sort of ventilation is called natural ventilation. This type of ventilation can be … Continue reading Methods of Ventilation in Tunnels

Requirements of Good Ventilation System in Tunnels

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 … Continue reading Requirements of Good Ventilation System in Tunnels