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Caldecott Fourth Bore Tunnel: An Innovative NATM Design

Jan 1, 2018 | Sprayed Concrete Shotcrete, Tunnelling

The Caldecott Fourth Bore Project is a 1,030m long, 15.2m wide, US$420 million highway tunnel in the San Francisco Bay Area

St Helena Tunnel- Byron Bay, Australia

Feb 27, 2017 | Sprayed Concrete Shotcrete, Tunnelling, Uncategorized

St Helena Tunnel: Australia’s First Synthetic Fiber Reinforced Road Tunnel FollowFollow Australia’s St Helena road tunnel was constructed as part of the AUD$862 million Tintenbar to Ewingsdale (T2E) upgrade project, which rehabilitated 16.3 km of...

Development Speeds Increase 25% at Mt Ovit Tunnel, Turkey

Aug 2, 2016 | Production Efficiency, Sprayed Concrete Shotcrete, Tunnelling

Excavation speeds in the Mt Ovit Tunnel increased 25% after a switch to BarChip Macro Synthetic Fibers

Provo Canyon Highway- Utah, United States

Aug 2, 2016 | Civil, Sprayed Concrete Shotcrete

The Utah Department of Transportation officials approved the use of BarChip because of the superior performance and the additional benefits offered.

BarChip Reinforced Shotcrete Helps Make the Toughest Jobs Possible

Aug 1, 2016 | Civil, Sprayed Concrete Shotcrete

BarChip macro synthetic fiber reinforcement was able to stabilise the remote embankment.

Culvert Bank Stabilisation – Project Time Reduced from 4 Days to 1.

Aug 1, 2016 | Civil, Production Efficiency, Sprayed Concrete Shotcrete

BarChip structural synthetic fiber was chosen to meet the design life requirements, eliminate the risk of salt water corrosion and improve the structural integrity of the substrate.

Barchip Fiber Reinforced Shotcrete 35% Faster than Mesh and Bolts.

Jul 29, 2016 | Cost Reduction, Mining, Production Efficiency, Sprayed Concrete Shotcrete, Tunnelling

Methven (2004) shows that fiber reinforced shotcrete (FRS) has significantly faster development times compared with mesh and bolt ground support systems.