SEISMIC RESPONSE ANALYSIS OF GROUND IMPROVED BY SAND COMPACTION PILE METHOD CONSIDERING SPATIAL VARIABILITY

Abstract

 The sand compaction pile (SCP) method, which constructs sand piles in sandy ground, is widely used for ground improvement such as liquefaction countermeasures and bearing capacity improvement. In this paper, numerical analysis was performed to understand the seismic behavior of SCP improved ground with spatial variability in liquefaction strength. Monte Carlo simulation was performed to evaluate the characteristics among seismic response, seismic settlement, and excess pore water pressure.