Statnamic Lateral Load Testing and Analysis of a Drilled Shaft in Liquefied Sand Statnamic Lateral Load Testing and Analysis of a Drilled Shaft in Liquefied Sand
The computer program LPILE was then used to compute the load-deflection curves in comparison with the response from the field load tests. Analyses were performed using a variety of p-y curve shapes proposed for liquefied sand. The best agreement was obtained using the concave upward curve shapes proposed by Rollins et al. (2005) with a p-multiplier of approximately 8 to account for the increased pile diameter. P-y curves based on the undrained strength approach and the p-multiplier approach with values of 0.1 to 0.3 did not match the measured load-deflection curve over the full range of deflections. These approaches typically overestimated resistance at small deflections and underestimated the resistance at large deflections indicating that the p-y curve shapes were inappropriate. When the liquefied sand was assumed to have no resistance, the computed deflection significantly overestimated the deflections from the field tests.
School:Brigham Young University
School Location:USA - Utah
Source Type:Master's Thesis
Keywords:statnamic liquefaction liquefied sand p y curves log decrement load deflection equivalent static curve multiplier
Date of Publication:08/11/2005