Second Avenue Subway Project, New York: Design and Construction of the 96th Street Station

摘要

Phase 1 of the Second Avenue Subway is a $4.4 billion project. The first phase will consist of 3 new stations, one refurbished station, and TBM tunnels connecting the stations. Of the three new stations, 2 are mined (72nd St. and 86th St.), and the 96th St. Station is a cut-and-cover station located on the upper east side of the borough of Manhattan in New York City. This paper will discuss the design, planning, and construction of the 1500 foot long station at 96th Street. It will cover: slurry wall design and construction; temporary bracing and excavation, instrumentation and building monitoring; waterproofing; planning of entrance locations and ancillary buildings, and other aspects of building a cut-and-cover station in a densely populated urban environment.