Noise control for fan and vent shafts in subways: The Journal of the Acoustical Society of America: Vol 60, No S1

Subway fan and vent shafts can be significant sources of noise impact to both the adjacent community and to patrons in the subway stations. For fan shafts, the transmission of airborne noise through the shafts and surface openings to adjacent buildings and the ...

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Publications - Geotech - Bridges & Structures - Federal Highway Administration

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FACTSHEET: George Massey Tunnel Replacement Project Overview | BC Gov News

The George Massey Tunnel Replacement Project includes construction of a new 10-lane (8 lanes plus 2 dedicated transit/HOV lanes) bridge, Highway 99 improvements between Bridgeport Road in Richmond and Highway 91 in Delta, and three new highway ...

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San Antonio River and Tributaries, Texas Foundation Report, San Pedro Creek Tunnel and Shafts

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NIST Aerodynamic Database | NIST

The assembly and dissemination of this database represents an important step in facilitating Database-Assisted Design of buildings for wind. Database-Assisted Design makes direct use of pressure coefficients measured in the wind tunnel, rather than using simplified "pseudo pressure coefficients

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tunnel facts, information, pictures | Encyclopedia.com articles about tunnel

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Eastern tunnel entrance location | Construction in South Yarra | Construction | Metro Tunnel

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Fire Safety in Passenger Rail Transportation | NIST

Tunnel Fires NIST undertook a study undertaken to estimate the thermal environment of the Howard Street Tunnel in Baltimore, Maryland, following the derailment in July 2001 of a freight train and the burning of spilled tripropylene and the contents of surrounding ...

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Fire Protection for Underground Research Facilities

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How the Brooklyn-Battery Tunnel became the final link in Robert Moses' plan for New York - NY Daily News

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Tunnel illumination requirements. | Occupational Safety and Health Administration

Question 1: Does the transport of workers through the tunnel fall within the definition of "work in progress" The underground construction standard cross-references the lighting requirements of 1926.56(a). ...

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Underground Construction (Tunneling) - Home | Occupational Safety and Health Administration

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Gov. Jerry Brown trims giant water-tunnels project

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Tunneling – Science topic - ResearchGate | Share and discover research

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Snapshot: A Simple Solution to Protect Critical Infrastructure | Homeland Security

Think of the sheer number of ways water can enter into a subway tunnel, and it can become exhaustive. From the entrances, stairwells, elevator shafts, vents, rail yards, and the tracks themselves, ...

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ILC Citizens' Task Force tours underground tunnels

access shafts to large assembly areas to tunnels dug by a tunnel boring machine. Members of the ILC Citizens' Task Force, ... They viewed the access shafts into the tunnel and commented that surface buildings were less obtrusive than task force ...

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