Fulton street transit center - foundation design and construction in a dense urban environment

Joseph Appleby, Craig Covil, Uday Durg, Hsin Wu, Michael Deutscher

In the proceedings of: GEO2011: 64th Canadian Geotechnical Conference, 14th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering

Session: Deep Foundations

ABSTRACT: The Fulton Street Transit Center (FSTC), in Lower Manhattan, will provide a new transportation hub for one of the most congested parts of New York City. The project includes significant station upgrades as well as new connections between the different subway lines and eventually linking with the redevelopment of the World Trade Center. The center piece is the glass clad Transit Center, on the corner of Broadway and Fulton Street. The excavation for the substructure required the underpinning of the existing buildings that abut the site on two sides, including the Federally listed Corbin Building to the south. On the other two sides are existing subway structures. The excavation was supported by internally braced secant pile walls in order to reduce the ground movements. Monitoring was carried out on all surrounding structures and extensively for the Corbin Building. Once at full depth, the 5ft thick raft foundation was cast directly on the local interbedded silt and sand soils and the secant piles were broken down to open the structure to the existing subway lines and the underpass beneath the 4/5 line that was constructed under an earlier construction contract. This paper concerns the design and construction of the substructure of the Transit Center and the underpinning and excavation beneath the Corbin Building.

RÉSUMÉ: Le Centre de Transit de Fulton Street (FSTC) dans le bas Manhattan sera une nouvelle plaque tournante pour le transport de l'une des parties les plus congestionnées de la ville de New York. Le projet comprend des améliorations éventuelle avec le World Trade Center. La pièce maîtresse de ce projet est le Centre de Transit en verre situé au coin historique Corbin situé au sud tandis renforts internes avec pieux sécants afin de réduire les mouvements de sol. Un contrôle précis a été réalisé sur toutes les structures environnantes ainsi que sur l'édifice Corbin. Une fois à la profondeur finale, la fondation de 5 pieds d'épaisseur a été coulée directement sur la surface interstratifiée de silt et de sable. Les piles sécantes ont été cassées Cet article traite donc de la conception et de la construction de l'infrastructure du Centre de Transit et

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Cite this article:
Joseph Appleby; Craig Covil; Uday Durg; Hsin Wu; Michael Deutscher (2011) Fulton street transit center - foundation design and construction in a dense urban environment in GEO2011. Ottawa, Ontario: Canadian Geotechnical Society.

@article{GEO11Paper343,author = Joseph Appleby; Craig Covil; Uday Durg; Hsin Wu; Michael Deutscher ,title = Fulton street transit center - foundation design and construction in a dense urban environment,year = 2011}