Numerical Simulation of Settlement on Back Embankment of Transition Section Different Between Road and Bridge

The damage of jump at abutment joint has influenced expressway's quality, so four different measurements whether the wedge-shaped approach slab or filling material selected are applied to analyze their effects to the embankment incoordinate sedimentation in Ji-jiao-xin expressway in Henan province. FLAC (Fast Lagrange Analysis of Continua) software has simulated the embankment deformation and mechanical properties back of bridge abutment. Results show that: 1) Different ways of the wedge-shaped approach slab or filling material can influenced the incoordinate sedimentation; 2) In the four ways, the way with two wedge-shaped approach slabs and gravel can reduce the incoordinate sedimentation is best.