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Innovations to move the industry forward

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Unprecedented TBM Diameter Change

At the Mill Creek Drainage Relief Tunnel in Dallas, Texas, USA, a Robbins Main Beam TBM underwent an in-tunnel diameter change for the first time in the industry. The machine went from 11.6 m diameter to 9.9 m diameter through teamwork, perseverance, and top-notch engineering. Watch the video to find out more about the ground-breaking process and unique project. Watch Now

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News

Twin Robbins EPBs make milestones near Taj Mahal

A 6.52 m diameter Robbins EPB completed an intermediate breakthrough into SN Medical College Metro Station. The breakthrough was a significant achievement for the contractor, Afcons Infrastructure – Sam India Consortium, as the machine continues its bore on the 29.40 km Agra Metro Phase 1 project.

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Videos

Overcoming Mountainous Geology at Nepal's Sunkoshi Marin Project

Learn more about the Sunkoshi Marin Diversion Multipurpose Project (SMDMP) in this in-depth video featuring a record-setting Robbins Double Shield TBM. Find out how the crew were able to bore through mountainous geology at an impressive 1,503.3 m in one month and 72.6 m in one day.

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Final Breakthrough at Bahçe-Nurdaği Railway

In June 2023, a resilient 8.0 m diameter Robbins Single Shield completed its second tunnel at Turkey’s Bahçe-Nurdaği Railway. The machine completed 9.6 km of tunneling, adding on to the 9.2 km it completed in its initial railway tunnel in 2020.

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The History of Robbins

Pioneers in the World of Underground Construction

In 1952 James Robbins developed the first modern Tunnel Boring Machine for the Oahe Dam Project in South Dakota, USA. The machine used drag bits and dumbbell-shaped cutters to successfully excavate weak shale rock.

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“The performance of the XRE machine has been very good given the geology we have encountered during the project. We do plan to use Robbins for upcoming projects.”

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