Method for reinforcing gully through bolting-grouting dam

The invention discloses a method for reinforcing a gully by bolting-grouting dams, which relates to an ecological environment and geological disaster control technology, and mainly adopts the following measures: firstly, arranging a plurality of bolting-grouting dams for intercepting riprap and disintegrating slag according to the natural state of the gully; according to the bolting-grouting dam, two sets of self-drilling type anchor rods are bolted and grouted in a staggered mode in a drilling and grouting mode, the self-drilling type anchor rods drill to the bottom of a gully and enter stable rock at the bottom of the gully to reach a certain anchoring length, then grouting continues to be conducted, and concrete dam bodies anchored to the stable rock at the bottom of the gully one by one are formed to resist gliding of riprap and disintegrating slag; the stability of the gully is ensured; the staggered angle of the two sets of self-drilling type anchor rods on the horizontal plane should meet the requireme