Road and bridge integrated system pavement anti-cracking treatment method

Abstract

The application discloses a pavement anti-cracking treatment method of a road-bridge fusion system, which comprises the following steps: arranging an L-shaped lateral limiting steel plate at a joint of a soil subgrade and a widening bridge at a expansion joint; embedding a bottom plate of the L-shaped lateral limiting steel plate in a water-stable broken stone layer of the soil subgrade, and arranging the top of the L-shaped lateral limiting steel plate at a distance of 1 cm from an asphalt pavement layer; arranging a widening sealing glue between the L-shaped lateral limiting steel plate and a plate of the widening bridge; and arranging an epoxy asphalt mixture between a web plate of the L-shaped lateral limiting steel plate and the soil subgrade, and embedding the epoxy asphalt mixture under an asphalt concrete paving layer of the soil subgrade. The application is based on the innovative concept of "rigid isolation and lateral constraint", utilizes the deformation limiting of the L-shaped lateral limiting steel plate and the excellent performance of the epoxy asphalt mixture in terms of deformation resistance and high adhesion, effectively solves the pavement longitudinal crack problem at the joint of the expansion joint of the plate bridge and the soil subgrade in the reconstruction and expansion project of the bridge structure such as the pile-plate road, the pile-plate retaining wall subgrade and the half-mountain plate bridge, reduces the pavement maintenance, and improves the driving comfort.