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Unique Considerations in the Detroit DPM Foundation Design

by Geoffrey A. Fosbrook, Detroit DPM, Detroit, MI, USA,
Richard O. Anderson, Detroit DPM, Detroit, MI, USA,



Document Type: Proceeding Paper

Part of: Automated People Movers: Engineering and Management in Major Activity Centers

Abstract:

Foundation design for the guideway of Detroit's Downtown People Mover (DPM) was influenced by a variety of unique considerations. Severe loading conditions were created by the aerial guideway which will support continuously welded rail attached to the concrete beams with low restraint, direct fixation rail fasteners. Soil conditions consist of approximately 100 feet (30m) of clay till over hardpan (overconsolidated clay till). Tight radius curves to 115 feet (35m) and a high density of underground utilities created a challenge for the designers in foundation locations and configuration.

Subject Headings: Rail transportation | Guideways | Foundation design | Soil properties | Subways | Subsurface utilities | Welding | Detroit | Michigan | United States

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