Bridgehead settlement prevention and control method for expressway maintenance

The invention relates to the technical field of highway maintenance, in particular to a bridgehead settlement prevention and control method for highway maintenance, which comprises the following prevention and control steps: S1, when a bridgehead part is constructed, determining the geological condition of a pavement, analyzing the stability of a soil roadbed by adopting a geotechnical engineering parameter model, and selecting a corresponding material for construction; and S2, pile foundations are built on the ground, connection construction is conducted on the bridge and the expressway on the pile foundations, steel plate connecting blocks are inserted into joints, and the expressway continues to be laid through concrete. By investigating and analyzing the soil of the current road section in advance, the settlement speed can be greatly reduced, the maintenance time is delayed, the speed of the passing vehicle is analyzed through the real-time speed measuring device, the pavement settlement condition can be