Effects of Ground Deformation on Pile Stresses During Soil Liquefaction

Shaking table tests are conducted to study dynamic soil-pile-structure interaction during soil liquefaction. The test results indicate that : (1) regardless of the rigidity of pile, the bending moment of the pile before liquefaction is significantly influenced by the deformation of the soil deposit ; (2) unless the pile is rigid enough, the bending moment of the pile is also influenced by the deformation of the soil deposit; and (3) the maximum bending moment of the pile is related better to the ground deformation than to the acceleration measured on the structure.