Behavior of Piles in Laterally Spreading Ground During Earthquakes
Principal Investigators: Ross W. Boulanger (rwboulanger@ucdavis.edu)
Bruce L. Kutter (blkutter@ucdavis.edu)
Graduate Researchers: Priyanshu Singh (psingh@subsurfaceconsultants.com)
Scott J. Brandenberg (scottb@seas.ucla.edu)
Dongdong Chang (ddchang@ucdavis.edu)
Sponsor: California Department of Transportation
Contract Number: 59A0162
Project Period: October 1999 - June 2001
Photo Courtesy of John Egan
Acknowledgments

This model test was funded by Caltrans under the direction of Abbas Abghari. The contents of this report do not necessarily represent a policy of that agency or an endorsement by the state government. The authors would like to acknowledge the suggestions and assistance of Abbas Abghari, Angel Perez, Dan Wilson, Tom Kohnke, Chad Justice, Tom Coker, Bill Sluis, Kiran Manda, Michael White, David Stevens and Hideo Nakajima.

Test Name Test Date Test Description
PDS01 April 2000 Three single piles with various diameters and a two-pile group. Lateral spreading of a moderately overconsolidated nonliquefiable clay crust overlying a medium-thick deposit of liquefiable sand overlying dense sand. Crust at 2o slope. Three Kobe motions. Centrifugal acceleration = 38.1g.
PDS02 August 2000 Six-pile group (2x3) with a large embedded pile cap. Lateral spreading of a moderately overconsolidated nonliquefiable clay crust overlying a medium-thick deposit of liquefiable sand overlying dense sand. Crust at 4o slope. Two Kobe motions. Centrifugal acceleration = 36.2g.
PDS03 October 2000 Six-pile group (2x3) with a large embedded pile cap. Lateral spreading of a moderately overconsolidated nonliquefiable clay crust overlying a medium-thick deposit of liquefiable sand overlying dense sand. Crust at 4o slope. Three Santa Cruz motions and a Kobe motion. Centrifugal acceleration = 38.1g.
SJB01 February 2001 Six-pile group (2x3) with a large embedded pile cap. Lateral spreading of a highly overconsolidated nonliquefiable clay crust overlying a medium-thick deposit of liquefiable sand overlying dense sand. Crust at 4.4o slope. Three Santa Cruz motions and two Kobe motions. Centrifugal acceleration = 38.1g.
SJB02 April 2001 Six-pile group (2x3) with a large embedded pile cap. Lateral spreading of a highly overconsolidated nonliquefiable clay crust overlying a thin deposit of liquefiable sand overlying dense sand. Crust at 4.4o slope. Three Santa Cruz motions and two Kobe motions. Centrifugal acceleration = 38.1g.
SJB03 2002 Larger six-pile group (2x3) with a large embedded pile cap. Lateral spreading of a highly overconsolidated nonliquefiable clay crust overlying liquefiable Nevada sand over dense Nevada sand. Crust at 3o slope. Three Santa Cruz motions and one Kobe motion. Centrifugal acceleration = 57.2g.
BrandenbergDissertation.pdf 2005 Ph.D. Dissertation by Scott J. Brandenberg.

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