NHRCL’s milestone in bullet train project | The work of the first mountain tunnel in Valsad, Gujarat was completed in just 10 months.

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Valsad3 minutes ago

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National High Speed ​​Rail Corporation Limited described the completion of the work in such a short time as a milestone.  - Dainik Bhaskar

National High Speed ​​Rail Corporation Limited described the completion of the work in such a short time as a milestone.

The construction of the first mountain tunnel for the Ahmedabad-Mumbai High Speed ​​Rail Corridor has been completed. High Speed ​​Rail management has described it as a milestone. This tunnel comes in package C4 of Vadodara-Surat-Vapi section.

National High Speed ​​Rail Corporation Limited (NHRCL) said on Thursday that the crucial milestone of the Mumbai-Ahmedabad High Speed ​​Rail Corridor project has been crossed.

Faucet Single Tube Horse-Shoe Shaped
This is the first mountain tunnel of this route, the construction of which has been completed in 10 months. The structure of the tunnel includes tunnel, portal and other connecting structures such as tunnel entrance hood. The tunnel is shaped like a single tube horse-shoe. The tunnel is being built using the New Austrian Tunneling Method (NATM).

It is built using the New Austrian Tunneling Method (NATM).

It is built using the New Austrian Tunneling Method (NATM).

A total of seven mountain tunnels are to be built
According to the report, a total of seven mountain tunnels are to be built in the Mumbai-Ahmedabad Bullet Train Project. ‘Success’ has been achieved in building the first tunnel in Valsad, Gujarat. This mountain tunnel is located about 1 km away from Jaroli village in Umber village taluka of Valsad district, Gujarat.

Use of these techniques in New Austrian Tunneling Method

  • drilling holes on tunnel face
  • Drilling of marked holes
  • charging explosives
  • controlled blasting
  • Removing dirt (destroying pieces of rock)
Tunnels are also to be built in Kasabekaman, Chandrapada, Chandsar, Mithagar, Vasantwadi and Ambesari in Palghar district of Maharashtra.

Tunnels are also to be built in Kasabekaman, Chandrapada, Chandsar, Mithagar, Vasantwadi and Ambesari in Palghar district of Maharashtra.

Main Features of Mountain Tunnel

  • Total length of tunnel – 350 meters
  • Tunnel diameter – 12.6 meters
  • Tunnel Height – 10.25 m:
  • Number of tracks – 2

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