Abstract
In order to investigate the seismic behavior of soil retaining walls, a series of model shaking tests was conducted, and generation of negative pore air pressure in backfill soil was observed. Such negative pore air pressure was possibly caused by outward wall displacement relative to the backfill soil, not by dilative behavior of the backfill soil. A simplified numerical procedure while considering the effects of the negative pore air pressure was proposed, which could reasonably simulate the measured values of the seismic earth pressure and the angle of failure plane in the backfill soil. [This abstract is not included in the PDF]