Nagar runs for nearly 10 km. The tunnel boring machine (TBM) Flamingo departed from the longest station of the phase II project, Light House, and started boring in September 2023 and its target ...

The Rishikesh-Karanprayag rail line in Uttarakhand makes rapid progress in tunnel boring, reported as one of the fastest globally. Using a Single Shield TBM, RVNL completed a 14.58-km tunnel at an ...

Gaur told PTI that the 9.69-m diameter Cabrera tunnel in Spain was built by a Double Shield tunnel boring machine at an average rate of 423 metres per month while the 14.58-km tunnel between ...

including the famous PRUFROCK-3 and PRUFROCK-4 tunnel boring machines. In the following days, each subsystem of the team's machine – hydraulics, electrical, mechanical, and software – was ...

Rail Vikas Nigam Ltd (RVNL) is making significant strides in the Rishikesh-Karanprayag rail line project, achieving ...

The upcoming 125-km Rishikesh-Karanprayag rail line in Uttarakhand has achieved remarkable progress in tunnel boring work, ...

including the famous PRUFROCK-3 and PRUFROCK-4 tunnel boring machines. In the following days, each subsystem of the team's machine – hydraulics, electrical, mechanical, and software – was ...

Industry standards for surface finish help define the specifications of the instruments, how they are used, the results they provide and how they can be tested for performance. 26 Feb 2025 Marathon ...