Pre-grouting construction structure for highway construction

The utility model belongs to the technical field of highway construction, and particularly relates to a pre-grouting construction structure for highway construction, which comprises a bottom plate, a supporting box body fixedly connected to the top end of the bottom plate, a supporting plate connected to the top end of the supporting box body, a grouting pipe fixedly connected to the top end of the supporting plate, and a discharging pipe connected to the discharging end of the grouting pipe. Moving wheels are symmetrically installed at the bottom end of the bottom plate, a cavity is formed in the supporting box body, lifting type stabilizing structures are arranged outside the moving wheels, a connecting block is connected to the bottom end of the discharging pipe, a detachable adjusting structure is arranged at the lower end of the connecting block, a forward and reverse motor is installed on the outer surface wall of the supporting box body, and the output end of the forward and reverse motor is connected