Mumbai: The National High Speed Rail Corporation (NHSRC) has launched a steel bridge of 60m length as part of Mumbai-Ahmedabad Bullet Train Project. in Vadodara, Gujarat, on October 22. The bridge is located on the Bajva-Chhayapuri chord line of Western Railway.
According to an NHSRC official, the steel bridge launched successfully, has been made under ‘Make in India’ scheme. The bridge’s total weight is 645 metric tonne which is 12.5m in height and 14.7m broad. The bridge was made at the workshop in Bhachau, Gujarat which was then transported to site for installation.
Journey to be completed in around 2 hours
NHSRC stated that after completion of the corridor, the journey in the corridor would be completed in around 2 hours. The trains will run at an speed of 320 km per hour. The number of trains which will be operational on the corridor per day would be 35. During peak hours the frequency of the trains would be 20 mins while at non-peak hours it will be 20 minutes. The trains will be operated from its control room which will be at Sabarmati.
How did construction take place?
The bridge has been designed for a lifespan of 100 years. For assembling the bridge around 25,659 Tor-Shear Type High Strength (TTHS) bolts with C5 system painting and elastomeric bearings have been used. As per the official statement, the a temporary base was used for construction of the bridge on ground. After the construction was completed, the bridge was raised at a height of 23.5 meters, and was then lifted to 21 metre above the ground at the height of the pier. An automatic mechanism having two semi-automatic jacks with a capacity of 250 tonnes, was used to lift the bridge. Mac-alloy bars were used in it.
The government stated, “The project is being done with keeping in mind all the technical details to ensure complete safety which will prove engineering excellence. Under the ‘Make in India’ initiative we are using Japanese expertise to utilise India’s own technological and material resources for construction.”
