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Title: Prediction of High Pile Rebound with Fines Content and Uncorrected Blow Counts from Standard Penetration Test
Accession Number: 01476860
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: High-displacement piles have rebounded significantly while undergoing an extremely small permanent set per hammer blow in certain soils. This phenomenon, called high pile rebound (HPR), has occurred in many areas of North America. The Florida Department of Transportation identified HPR at six sites in Florida during the process of driving square, precast, prestressed concrete piles into saturated, fine silty-to-clayey sand and sandy-clay soils. Data on pile driving analyzer deflection versus time were used to develop strong correlations between fines content, uncorrected standard penetration test blow counts (NSPT), pile displacements, and rebound. The correlations developed in this study allow the geotechnical engineer to predict whether HPR will occur at a proposed site at which high-displacement piles are planned for driving by a single-acting diesel hammer. A design equation relating pile rebound to NSPT and fines content was developed. The correlations showed that permanent set and rebound were a direct function of NSPT and fines content of the soil at the pile tip. The design equation provides a methodology that allows prediction of HPR during the design phase.
Monograph Title: Monograph Accession #: 01500235
Report/Paper Numbers: 13-2880
Language: English
Authors: Jarushi, FauziCosentino, Paul JKalajian, Edward HPagination: pp 47–55
Publication Date: 2013
ISBN: 9780309286794
Media Type: Print
Features: Figures
(9)
; References
(5)
; Tables
(3)
TRT Terms: Geographic Terms: Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; I24: Design of Bridges and Retaining Walls; I42: Soil Mechanics; I53: Construction of Bridges and Retaining Walls
Files: TRIS, TRB, ATRI
Created Date: Feb 5 2013 12:35PM
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