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Caldecott Fourth Bore Tunnel: An Innovative NATM Design
The Caldecott Fourth Bore Project is a 1,030m long, 15.2m wide, US$420 million highway tunnel in the San Francisco Bay Area
Development Speeds Increase 25% at Mt Ovit Tunnel, Turkey
Excavation speeds in the Mt Ovit Tunnel increased 25% after a switch to BarChip Macro Synthetic Fibers
Provo Canyon Highway- Utah, United States
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
BarChip macro synthetic fiber reinforcement was able to stabilise the remote embankment.
Culvert Bank Stabilisation – Project Time Reduced from 4 Days to 1.
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.
Methven (2004) shows that fiber reinforced shotcrete (FRS) has significantly faster development times compared with mesh and bolt ground support systems.
Helsinki Metro Achieves 60% Reduction in Equipment Maintenance with Barchip’s Synthetic Fiber Shotcrete Reinforcement
Barchip’s synthetic fiber helps deliver substantial material handling and maintenance cost reductions to Helsinki Metro.
Newcrest’s Cadia Valley and Barchip – Shotcrete Project of the Year
Newcrest is Australia’s largest gold producer and has embraced Barchip synthetic fiber reinforced shotcrete for ground support.
Devil’s Slide Tunnel
Barchip’s synthetic fiber reinforced shotcrete easily met the performance specifications of the Devil’s Slide road tunnel.