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- W2000989723 abstract "The Metropolitan Transportation Authority (MTA) Capital Construction's East Side Access project will bring the Long Island Rail Road (LIRR) to Grand Central Terminal (GCT), providing a direct connection to Manhattan's east side for current and future railroad customers. The proposed construction of elevator shafts connecting the GCT 45th Street Cross Passage to the Mezzanine Level of the new LIRR Terminal caverns in New York City, NY represents a challenge for design and construction, because of the close proximity of the shafts to the caverns and complex geometries. The remnant pillars defined by the elevator shafts and caverns are nominally 5 ft (1.5 m) wide and subject to a high stress concentration due to arching and stress redistribution. Because of the critical location, a detailed construction procedure was developed. This paper describes detailed numerical analyses of shaft and tunnel support design and construction sequence in conjunction with empirical approaches. Three-dimensional numerical analyses using MIDAS and 3DEC confirmed that the required excavation and support operations could be performed without potentially affecting GCT operations. The paper illustrates how detailed numerical analyses can be applied practically to demonstrate the feasibility of complex construction operations in critical locations." @default.
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- W2000989723 date "2012-03-29" @default.
- W2000989723 modified "2023-10-01" @default.
- W2000989723 title "Numerical Analysis of Shaft and Tunnel Design Adjacent to Station Cavern" @default.
- W2000989723 cites W2577821419 @default.
- W2000989723 doi "https://doi.org/10.1061/9780784412121.336" @default.
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