NEAR-FULL SCALE TESTING AND ANALYSIS OF SATURATED SANDPILEINTERACTION UNDER EARTHQUAKE CONDITION

摘要

Near-full scale testing and analysis of a 2x1 steel pile group shake-table experiment using the largestlaminar container in the world are presented. At NIED (National Research Institute for Earth Science andDisaster Prevention), Japan, a large-scale shake-table test physically modeled the seismic interactionbetween a full-size pile group and liquefied sand. The large experimental database includes 570 timehistories for the three shaking events. Visual analysis using web-based interactive toolscaptures essential behavior aspects than otherwise had not been detected.Saturated sand-pile interaction is significant during the stage of pore water pressure increase untilreaching the zero effective stress condition. P-y analysis reveals agreement with previous p-y curvesreported in the literature.