The Robbins Company

If the tunnel-geology ranges from soft soils to weathered rock, the Robbins Company offers a solution: The Earth Pressure Balance Machine (EPBM). EPBMs are built for durability and longevity with a thicker cutterhead, an operational life of 10 000 hours, and other features that draw from the company’s extensive background in hard rock. For mixed ground projects, Robbins offers Hybrid Tunnel Boring Machines that feature advantages from two different machine types. New designs for larger diameter machines of 12 to 15 m further streamline in-tunnel conversion between modes.

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Issue 2018-06 Japan

Hiroshima Heavyweight launches on Expressway Line 5

On September 18, 2018, a Robbins slurry machine, measuring 13.7 m in diameter, made its first cut into hard rock

Due to the project location there were also restrictions on delivering the TBM—in order to meet controlled transportation limits within the city, the TBM had to be divided into small transportable...

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Issue 2014-06 Turkey

Kargi Hydroelectric Project: TBM conquers difficult Ground

Multiple fault zones, variable face conditions and squeezing ground requiring extensive bypass tunneling: These were just a few of the challenges overcome in order to successfully complete Turkey’s...

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Issue 2014-03 China

First extension for Beijing’s Metro Line 6 opens in September

After only three months of work a Robbins 6.15 m (20.2 ft) diameter EPB machine finished its excavation task in China’s capital Beijing. The machine had bored through 2.3 km (1.4 mi) of soft soils,...

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USA

Veteran TBM is boring 28 km of Wastewater Tunnels in Indianapolis

In early September 2016, one of the longest-running Robbins TBMs embarked on its most extensive project yet. The Main Beam machine with a diameter of 6.2 m, owned by the Shea-Kiewit (S-K) JV, is...

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Issue 2016-07 USA

Veteran TBM is boring 28 km of Wastewater Tunnels in Indianapolis

In early September 2016, one of the longest-running Robbins TBMs embarked on its most extensive project yet. The Main Beam machine with a diameter of 6.2 m, owned by the Shea-Kiewit (S-K) JV, is...

more