Residual soil filled embankment failures have been the major part of landslide. The landslide event occurred at the filled embankment adjacent to the bridge abutment of Tudiyang Bridge at Nanping Section of Beijing-Fuzhou Expressway has been analyzed; and some factors affected on the residual soil filled embankment failure have been analyzed. The rainfall infiltration

as the most important factor

affected on this landslide event. Based on the parametric evaluation of the residual soil filled embankment failure

such mechanism analysis of filled embankment stability has been given. And the landslide were also caused by other triggering factors including the compacting factor of residual filled soil

the residual soil characteristics and the slaking deformation. The results offer engineering treatments of designing the high residual soil filled embankment and controlling the quality of construction.