Characteristics of lateral ground force acting on piles in laterally spreading soil

摘要

Two series of shaking table tests, one with a quay wall and the other without, were conducted to clarify the lateral ground force acting on piles in liquefied and laterally spreading soils. It is shown that (1) the lateral ground force acting on a pile in laterally spreading soil as well as that in liquefied soil has the characteristics of solid ground due to decrease in excess power water pressure and recovery of effective normal stress after liquefaction, and (2) the lateral ground force acting on a pile near a quay wall becomes nine times larger than the maximum inertial force at a pile head in laterally spreading soil.