Subway

Serial Information: Civil Engineering—ASCE, 1983, Vol. 53, Issue 6, Pg. 48-49


Document Type: Feature article

Abstract:

Peachtree Center Station is the only mined transit station in the U.S. using reinforced native rock for permanent support. The station, serving some 34,000 patrons a day, is the largest station on the Metropolitan Atlanta Rapid Transit Authority's north-south line. Building a deep subway station in the heart of Atlanta's Peachtree Center, the city's commercial showcase, was a difficult task. A cut-and-cover construction plan proposed originally would have had a drastic effect on traffic and access to the business-retail complex. In the unusual solution finally adopted, the station was mined out of a massive gneiss formation, reinforced only by resin-encapsulated rock dowels (except at rock pillars at the entrances, where pretensioned rock bolts were used). The native rock was also used for the architectural finish for large parts of the station, saving money.

Subject Headings: Rocks | Subways | Railroad stations | Urban areas | Transportation management | Traffic management | Rapid transit systems

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