Then and now: How tech made the difference

  • By TOI
  • | Monday | 17th April, 2017

Tripura governor Tathagata Roy, and deputy chief engineer of the Kolkata Metro then, said: "It was not an easy job in a controlled economy to terminate contracts and get new global consultants as it's now. The challenge was to join the Shyambazar five-point crossing with Bhupen Bose Avenue in north Kolkata. The rest of the Metro alignment from Tollygunge was more or less a cut-and-cover job. But tunnelling at north Kolkata part was the most challenging. KOLKATA: His eyes glistened at the technological marvel when the computer operated tunnel boring machine (TBM) nosed under the Hooghly to carve out two tunnels last Friday.

KOLKATA: His eyes glistened at the technological marvel when the computer operated tunnel boring machine (TBM) nosed under the Hooghly to carve out two tunnels last Friday.

"Technology has made it easier and safer," said 75-year old construction man Biswanath Bhunia.

A chip fitted in front of the TBM will measure the earth pressure and find its way under the river bed with zero possibility of soil subsidence.Sitting at the Afcons Salt Lake office, the former Metro Tunnel Project manager of the country's first North-South Metro project in Kolkata narrated his tryst with such tunnelling under Circular Canal in 1979-84.

The challenge was to join the Shyambazar five-point crossing with Bhupen Bose Avenue in north Kolkata.

"It was a nightmare.

Stay updated with all the Kolkata Latest News headlines here. For more exclusive & live news updates from all around India, stay connected with NYOOOZ.

Related Articles