Method and structure for controlling differential settlement of roadbed

The invention relates to the technical field of soft soil roadbeds, and discloses a subgrade differential settlement control method and a subgrade differential settlement control structure. A temporary subgrade is formed by cast-in-place of a sulfur mortar material containing a heating wire, a reinforcing mesh is pre-buried in the temporary subgrade, and a plurality of first insertion rods are inserted into one side of the subgrade and one side of the reinforcing mesh; a plurality of second inserting rods are inserted into one side of the rear roadbed and one side of the reinforcing mesh, prompting assemblies are arranged on the lower sides of the second inserting rods, and when the rear roadbed drives the second inserting rods to move downwards, the bottoms of the second inserting rods make contact with the tops of the protruding blocks, so that when the first contact blocks make contact with the second contact blocks, prompting assemblies are arranged; at the moment, the current of the storage battery is tr