Benefit of lockdown, Kolkata metro has the deepest air shaft in the country
When the entire country was closed in houses due to lockdown, the engineers of Kolkata Metro took advantage of this and built the country’s deepest air shaft i.e. ventilation shaft. The depth of this shaft is 43.5 meters.
Emergency rescue will help in creating the correct air pressure
This shaft is 15 storey deep, has a diameter of 10.3 meters
Someone should learn from our engineers the skills to turn trouble into good conditions. When the entire country was closed in houses due to lockdown, the engineers of Kolkata Metro took advantage of this and built the country’s deepest air shaft i.e. ventilation shaft. The depth of this shaft is 43.5 meters.
Kolkata Metro Railway Corporation (KMRC) considered lockdown as the best opportunity to build this deep shaft. A depth of 43.5 meters means a 15-story building. Even before this, KMRC gave a big gift to the country.
KMRC and Afcons together have given the nation the deepest Howrah railway station. Together these two have made the Underwater Twin Rail Transport Tunnel for the country.
Because of the lockdown, the workers went to their respective homes. Work was off But the speed of work in unlock was fast. This shaft is built between the metro from Saltlake Sector 5 to Saltlake Stadium. The metro running here will reach Sealdah, Esplanade, Mahakaran, Howrah Station and then Howrah Maidan.
Creating such a deep air shaft was a big challenge in itself. The reason was that there were very old and dilapidated buildings around it. Because of this KMRC engineers faced a lot of challenges.
This project is also connected to the Hooghly River. Therefore, in preparing it, the geographical conditions around the shaft were tested. The diameter of this shaft is 10.3 meters. It was built to pass the air between the two metro stations tunnel.
This shaft has been prepared between the two metro tunnels. The depth of the shaft had to be matched with the depth of the metro tunnel, which is present at a depth of 40 meters from the surface of the river. This shaft will help in evacuating passengers in ventilation and emergency.
