Robbins TBM Achieves Breakthrough at Agra Metro Project

Earlier this year a Robbins EPB (Earth Pressure Balance) machine reached a milestone at the Agra Metro Project, breaking through into the SN Medical College Metro Station. The machine, with a diameter of 6.52 meters, is being used by contractor Afcons Infrastructure – Sam India Consortium as part of the 29.40 km Agra Metro Phase 1 project. Launched on March 23, the machine completed the 508-meter bore in less than three months through soft clay strata.

This breakthrough marks the fourth for the Robbins TBM, named ‘Yamuna,’ which previously completed a section near the Taj Mahal, monitored closely due to its proximity to the historic site. ‘Yamuna’ is one of two Robbins TBMs working on the project, with its twin ‘Ganga’ currently boring a parallel tunnel. Both machines, refurbished and customized for soft ground conditions, have operated without major maintenance issues and within contractual timeframes.

“We want to congratulate Afcons-Sam India on the continued success at Agra Metro. They’ve completed this most recent bore in a dense urban setting, which is a great result,” said Robbins President Lok Home. “We are confident in the long life and robust design of our TBMs, especially when they are well maintained and properly operated.”

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