Article

RepairUndergroundStructuralThe Danger of Fallouts in Overhead Shooting

William Clements

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The volume of shotcrete required to cover an area of only 3 ft2 (0.3 m2) with a 4 in. (100 mm) thickness would typically weigh approximately 140 lb (64 kg), a weight that?if dropped from a height of 10 ft (3 m)?would seriously endanger the

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RepairTop Ten Sustainability Benefits of Shotcrete

Top 10 Sustainability #5

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Top Ten Sustainability Benefits of Shotcrete

Article

RepairUndergroundStructuralIncline Tunnel—S&S Quarries, Inc

Edwin Brady

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The Incline Tunnel, S&S Quarries, Inc., is the access to an underground rock mine in Knoxville, IA, owned by Bruening Rock Products.

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RepairArchitecturalStructuralRankin Bridge

Dennis Bittner

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The Rankin Bridge is a cantilever bridge spanning the Monongahela River in Pittsburgh, PA.

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RepairStructuralDifferences and Similarities of Shotcrete Specifications

Cathy Burkert

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In my years of working as a shotcrete contractor in the state of Illinois, the Department of Transportation (DOT) has revised the shotcrete specification numerous times

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RepairUndergroundStructuralChanging Methods of Sinking Vertical Shafts in Mining

Natasha Odendaal

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The way the mining industry and contractors work with vertical shafts is changing through the introduction of technologies such as Murray & Roberts (M&R) Cementation?s advanced shaft-lining technology.

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RepairUndergroundThird-Rail Safety

Ray Schallom III

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There are a few things you should be aware of when working around the third rail of an electric-powered passenger train.

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RepairUndergroundStructuralChanging the Traditional Shotcrete Mixture to Suit Underground Applications

Dan Millette

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Concrete mixtures used in the shotcreting process have traditionally been low-slump mixtures.

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RepairUndergroundStructuralLiberty Tunnels Phase 2

Dennis Bittner

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The Liberty Tunnels were opened in January 1924.

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RepairArchitecturalStructuralConcrete Arch Bridge No. 6.45 over 31st Street, Queens, NY

Tommy Pirkle and Arden (Morris) Boddie

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The New York Connecting Railroad is a rail line in the borough of Queens in New York City and forms an important element of the Northeast Corridor