Record breaking Robbins chews through Little Calumet Leg limestone

Article Abstract:

The contract with Jay Dee/Affholder joint venture for the Little Calumet Leg tunnel construction is investigated. Affholder uses the factory refurbished Robbins TBM for driving through the hard rock tunnel. The TBM has shown a record weekly advance of 474.7m.

United States, Construction, Joint ventures, Engineering Services, Engineering & Architectural Svcs, HEAVY CONSTRUCTION, EX. BUILDING, GENERAL BUILDING CONTRACTORS, Machine Tool (Metal Cutting Types) Manufacturing, Machine tools, metal cutting types, Boring Machines, Construction industry, Usage, Evaluation, Company joint venture, Drilling and boring machinery, Affholder Inc., Jay Dee Contractors Inc.

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What goes around comes around - but maybe better!

Article Abstract:

The major technological advances in the tunneling sector that have been gradual, but effective, are discussed.

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Digital tunneling

Article Abstract:

Computer-aided design and three other new technologies are making tunneling more accurage and predictable.

United Kingdom

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