Analysis of Damage Pattern of Road Bridge Landslide in Mountainous Area

Through on-site defect investigation, special inspection, and finite element simulation calculation of a high-speed upper-span (30 + 32 + 30) m prestressed concrete box girder bridge, the overall sliding force of the bridge on the right side of platform 0# is analyzed. In this situation, typical defects such as overall girder slippage, support dislocation, pier column deviation, and pier bottom side cracks have occurred in the overpass. At the same time, combined with simulation calculation analysis, it is interpreted that the 0# and 1# foundation has been damaged at a certain position below the ground line. The occurrence of broken piles has provided a reliable basis for the later reinforcement and maintenance of the bridge and ideas for emergency inspection and analysis of bridges damaged by the same type of landslides.