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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

Main Beam TBM

Competent Hard Rock

EPBMs

Soft Ground

Crossover

Variable Geology

Double Shield TBM

Fractured Hard Rock

Single Shield TBM

Fractured Rock With Water Inflows

Events

Bauma 2022

Meet us in Munich October 24-30, where Robbins will be exhibiting at Bauma, the largest construction machinery trade show in the world. Join us in Hall C2, stand 537, and get the latest on our mining and civil tunneling products and projects.

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News

Landmark Breakthrough for Robbins TBM ‘Big Tex’

On July 25, 2022, a crowd gathered as a large Robbins Main Beam TBM, dubbed ‘Big Tex’, broke through in Dallas, Texas, USA. The machine and its continuous conveyor system, for the Mill Creek Drainage Relief Tunnel, successfully bored 8 km (5 mi) in chalk and shale at up to 498 m (1,634 ft) advance in one month.

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News

Robbins TBM takes on Karstic Limestone below St. Louis

In Spring 2022, a specialized Robbins 4.1 m (13.5 ft) diameter Main Beam TBM launched in St. Louis, Missouri, USA, to complete a critical infrastructure tunnel for contractor SAK Construction.

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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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