Robbins

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Video

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

News

Robbins Double Shield Launches in Nepal

In October 2022, China Overseas Engineering Group Co. Ltd and China Railway No. 2 Engineering Group Co Ltd launched a 6.4 m diameter Robbins Double Shield TBM.

Webinars

Sustainable Tunneling with Rebuilt TBMs

In this complimentary, 60-minute webinar recording we discuss rebuilt TBMs as a key to sustainable tunneling with Doug Harding, Robbins Vice President, and Christian Heinz, Project Manager for J.F. Shea.

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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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.”

— Andrés Alanís, CEO of RECSA group, contractor for TEP II

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