Location
Chicago, Illinois
Date
02 May 2013, 2:00 pm - 3:30 pm
Abstract
Rotary driven pipe piles are a unique solution for foundation construction in constrained urban areas. These piles consist of a closedend, steel casing with sacrificial drill tip. The casing and drill tip are rotated into the ground using a fixed-mast drill rig. Three hundred sixty two 12.75-inch diameter, rotary driven pipe piles were installed to support a 14-story building in the upper east side of Manhattan. The soils consisted of uncontrolled fill, organic silts, and peat over stiff, saturated, varved silts and clays. A novel mathematical relationship between capacity, installation crowd, and torque was used to develop initial pile installation criteria. A simple discrete element model showed the piles would exhibited considerable freeze. This was verified by successive torque readings over time. Four compression, one tension, and one lateral load test were performed. Torque measurements, load test results, and installation observations are presented. All piles performed exceptionally well during the test program in terms of total pile head deflection. Overall, field measurements matched predictions. Careful coordination and communication between all parties allowed pile installation to proceed rapidly; the foundation was completed on schedule and budget. Each pile was fitted with a geothermal conduit loop to create ‘energy piles’, which will be instrumented for future case study research.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
7th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2013 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Perko, Howard A.; Paquette, Michael; Gallagher, Marc; and Burns, Andrew, "Rotary Driven Pipe Piles for a 14-Story Building in New York City" (2013). International Conference on Case Histories in Geotechnical Engineering. 27.
https://scholarsmine.mst.edu/icchge/7icchge/session02/27
Rotary Driven Pipe Piles for a 14-Story Building in New York City
Chicago, Illinois
Rotary driven pipe piles are a unique solution for foundation construction in constrained urban areas. These piles consist of a closedend, steel casing with sacrificial drill tip. The casing and drill tip are rotated into the ground using a fixed-mast drill rig. Three hundred sixty two 12.75-inch diameter, rotary driven pipe piles were installed to support a 14-story building in the upper east side of Manhattan. The soils consisted of uncontrolled fill, organic silts, and peat over stiff, saturated, varved silts and clays. A novel mathematical relationship between capacity, installation crowd, and torque was used to develop initial pile installation criteria. A simple discrete element model showed the piles would exhibited considerable freeze. This was verified by successive torque readings over time. Four compression, one tension, and one lateral load test were performed. Torque measurements, load test results, and installation observations are presented. All piles performed exceptionally well during the test program in terms of total pile head deflection. Overall, field measurements matched predictions. Careful coordination and communication between all parties allowed pile installation to proceed rapidly; the foundation was completed on schedule and budget. Each pile was fitted with a geothermal conduit loop to create ‘energy piles’, which will be instrumented for future case study research.
