A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Former Navy Yard Revitalized with Hollow-Stem Grout Cast-In-Place Piles
The case history discusses development of a 14 story, 675,000-square-foot (62,700 square meter) building supported by over 350 hollow-stem, cast-in-place friction piles with an average depth of 90 ft (27 m) at a former Navy Yard dry dock. The chosen pile type was the result of a value-engineering effort proposed by the contractor and replaced traditional caisson piles originally proposed during design. Hollow-stem, cast-in-place piles are well suited for conditions where soil is easily displaced because the pile type tends to have an increased production rate. However, difficulties during construction can quickly arise in more challenging ground conditions. In this paper, the difficult subsurface conditions and below-grade obstructions are explained, as well as the pile installation method and modifications resulting from challenges that arose while constructing and testing the piles. We provide details about the comprehensive axial compression load-test program. Finally, we provide lessons learned and recommendations for future use of hollow-stem, cast-in-place piles under complex site, and subsurface conditions.
Former Navy Yard Revitalized with Hollow-Stem Grout Cast-In-Place Piles
The case history discusses development of a 14 story, 675,000-square-foot (62,700 square meter) building supported by over 350 hollow-stem, cast-in-place friction piles with an average depth of 90 ft (27 m) at a former Navy Yard dry dock. The chosen pile type was the result of a value-engineering effort proposed by the contractor and replaced traditional caisson piles originally proposed during design. Hollow-stem, cast-in-place piles are well suited for conditions where soil is easily displaced because the pile type tends to have an increased production rate. However, difficulties during construction can quickly arise in more challenging ground conditions. In this paper, the difficult subsurface conditions and below-grade obstructions are explained, as well as the pile installation method and modifications resulting from challenges that arose while constructing and testing the piles. We provide details about the comprehensive axial compression load-test program. Finally, we provide lessons learned and recommendations for future use of hollow-stem, cast-in-place piles under complex site, and subsurface conditions.
Former Navy Yard Revitalized with Hollow-Stem Grout Cast-In-Place Piles
Alzamora, Arthur J. (author) / Ford, Laurence E. (author) / Maene, Tommy (author) / Poeppel, Alan R. (author)
IFCEE 2018 ; 2018 ; Orlando, Florida
IFCEE 2018 ; 37-51
2018-06-06
Conference paper
Electronic Resource
English
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