Category: Tunnels

Difference between Natural & Mechanical Ventilation in Tunnel

2nd July 202012th September 2023 Malay Sautya

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 differences between natural ventilation and mechanical ventilation in the tunnel. Natural Ventilation 1. Natural ventilation is achieved by providing shaft at…

Tunnels

Tunnel Lighting and Their Types – CivilNotePpt

14th May 202014th September 2023 Malay Sautya

Tunnel Lighting Various tunnelling work and operations can not be carried out successfully and satisfactorily if there is insufficient light in the tunnel. It is suggested that light with an intensity of 260 lumens per m2 in the working area is sufficient for the proper effectiveness of tunnelling work. Following are the situation and locations…

Railway Engineering, Tunnels

18 Safety Precautions in Tunnelling

29th February 202011th March 2022 Malay Sautya

18 Safety Precautions in Tunnelling Tunnelling is an underground construction and there are many types of risks during construction. Therefore, it is essential to take measures to protect the workers from accidents. Following are the 18 Safety Precautions in Tunnelling. 1. The floor of the tunnel should be kept dry and clean.2. Open flames, electric…

Railway Engineering, Tunnels

Maintenance of Railway Tunnels

26th February 202023rd August 2022 Malay Sautya

Maintenance of Railway Tunnels Generally, P.W.I. inspects every tunnel in his section, and he is personally responsible for maintaining the track through tunnel in perfect running condition. The following points should be noted in connection with the maintenance of railway tunnels. 1. It should be noticed whether the structure of the tunnel has weakened, cracked…

Railway Engineering, Tunnels

Classification of Tunnel Drainage System

22nd February 202011th March 2022 Malay Sautya

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,…

Highway engineering, Railway Engineering, Tunnels

Methods of Ventilation in Tunnels – CivilNotePpt

4th September 20196th May 2023 Malay Sautya

Methods of Ventilation in Tunnels The following methods are implemented for 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 improved by providing shafts at regular intervals…

Highway engineering, Railway Engineering, Tunnels

Requirements of Good Ventilation System in Tunnels

19th August 20193rd April 2023 Malay Sautya

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…

Tunnels