In 1979, a 4.56 m diameter Robbins Double Shield TBM was delivered to bore the Severomuysky Service Tunnel, a 15.3 km long railway through the remote mountains of Siberia. Now, 40 years after the original machine was delivered, Robbins is returning to the [...]
In 1979, a 4.56 m diameter Robbins Double Shield TBM was delivered to bore the Severomuysky Service Tunnel, a 15.3 km long railway through the remote mountains of Siberia. Now, 40 years after the original machine was delivered, Robbins is returning to the [...]
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 [...]
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 [...]
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. [...]
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. [...]
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 [...]
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 [...]
In April 2019, a Robbins Double Shield TBM defied the notoriously difficult geology of the Himalayas to break through about one year ahead of the overall project schedule, and seven months ahead of the TBM tunneling schedule. Nepal’s first tunnel bori [...]
In April 2019, a Robbins Double Shield TBM defied the notoriously difficult geology of the Himalayas to break through about one year ahead of the overall project schedule, and seven months ahead of the TBM tunneling schedule. Nepal’s first tunnel bori [...]
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