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Featured News | September 4, 2019

Compact TBM bores longest Rock Tunnel at 2.46 m Diameter

In August 2019, a small diameter Double Shield TBM made a big impact. The 2.46 m (8.07 ft) diameter Robbins machine completed 3,475 m (11,400 ft) of boring with no intermediate access, making it the longest rock tunnel ever bored by a Double Shield TBM un [...]

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In August 2019, a small diameter Double Shield TBM made a big impact. The 2.46 m (8.07 ft) diameter Robbins machine completed 3,475 m (11,400 ft) of boring with no intermediate access, making it the longest rock tunnel ever bored by a Double Shield TBM un [...]

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Featured News | August 21, 2019

Major Milestone for Delaware Aqueduct Repair as Robbins Single Shield Completes Excavation

On Tuesday August 13, a 6.58 m (21.6 ft) Robbins Single Shield TBM completed tunneling at the Delaware Aqueduct Bypass Tunnel, capping a challenging repair to the world's longest tunnel on time and on budget. [...]

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On Tuesday August 13, a 6.58 m (21.6 ft) Robbins Single Shield TBM completed tunneling at the Delaware Aqueduct Bypass Tunnel, capping a challenging repair to the world's longest tunnel on time and on budget. [...]

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Featured Blog | August 21, 2019

3 Ways to Bore More Efficiently in Extremely Hard Rock: Maximize your TBM Advance through Minimized Downtime

Given the clear risks of excavating massive, hard rock, how can tunnellers set themselves up for the best possible chance of success?  The combination of knowledgeable personnel, properly designed equipment, and rigorous TBM operation and maintenance are [...]

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Given the clear risks of excavating massive, hard rock, how can tunnellers set themselves up for the best possible chance of success?  The combination of knowledgeable personnel, properly designed equipment, and rigorous TBM operation and maintenance are [...]

Keep Reading  >

Featured News | June 4, 2019

Robbins EPB caps 62 km of Tunneling with Final Breakthrough at Emisor Oriente

On May 23, 2019, the last of six 8.93 m (29.3 ft) diameter EPBs completed excavation at Lot 4 of Mexico City’s Túnel Emisor Oriente (TEO), a feat marking the completion of ten years and 62.1 km (38.6 mi) of tunneling. Despite multiple challenges, the [...]

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On May 23, 2019, the last of six 8.93 m (29.3 ft) diameter EPBs completed excavation at Lot 4 of Mexico City’s Túnel Emisor Oriente (TEO), a feat marking the completion of ten years and 62.1 km (38.6 mi) of tunneling. Despite multiple challenges, the [...]

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Featured Videos | May 30, 2019

When the Going Gets Tough: Thuong Kon Tum Hydroelectric Project

Take a trip with Robbins to the scenic Thuong Kon Tum project in Vietnam where a 4.5 m Main Beam TBM has completed boring. After being left in high humidity and groundwater for 14 months, it was up to Robbins and contractor CC47 to step in and turn this p [...]

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Take a trip with Robbins to the scenic Thuong Kon Tum project in Vietnam where a 4.5 m Main Beam TBM has completed boring. After being left in high humidity and groundwater for 14 months, it was up to Robbins and contractor CC47 to step in and turn this p [...]

Keep Reading  >

News | September 4, 2019

Compact TBM bores longest Rock Tunnel at 2.46 m Diameter

In August 2019, a small diameter Double Shield TBM made a big impact. The 2.46 m (8.07 ft) diameter Robbins machine completed 3,475 m (11,400 ft) of boring with no intermediate access, making it the longest rock tunnel ever bored by a Double Shield TBM under 2.5 m (8.2 ft) in diameter. [...]

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News | August 21, 2019

Major Milestone for Delaware Aqueduct Repair as Robbins Single Shield Completes Excavation

On Tuesday August 13, a 6.58 m (21.6 ft) Robbins Single Shield TBM completed tunneling at the Delaware Aqueduct Bypass Tunnel, capping a challenging repair to the world's longest tunnel on time and on budget. [...]

Keep Reading

On May 23, 2019, the last of six 8.93 m (29.3 ft) diameter EPBs completed excavation at Lot 4 of Mexico City’s Túnel Emisor Oriente (TEO), a feat marking the completion of ten years and 62.1 km (38.6 mi) of tunneling. Despite multiple challenges, the operation achieved a project record of 30 m (98 ft) in one day, and a high of 528 m (1,732 ft) in one month.

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Press Release | June 4, 2019

Robbins EPB caps 62 km of Tunneling with Final Breakthrough at Emisor Oriente