Pavement repairing method free of environmental pollution and capable of eliminating vehicle bumping at bridge head

The invention relates to a pavement repairing method. The pavement repairing method comprises steps as follows: the position of a void in an access board of a damaged bridge is detected by a detection radar, positions of grouting holes I are marked on the surface of the access board and drilled, the grouting holes I go deep into a hard soil layer and are arranged in an array manner, center spacing between adjacent grouting holes I is 10-20 cm, and the void is enabled to fall into an array range; grouting holes II penetrate through a soft soil layer and interact with the grouting holes I, and check valves for exhausting air are arranged at two ends of each grouting hole II; the grouting holes I are subjected to grouting, slurry filling conditions inside the void, the grouting holes I and the grouting holes II are detected in real time by the three-dimensional detection radar, and grouting is stopped when the void, the grouting holes I and the grouting holes II are filled with slurry; after the grouting is stop