Gravel burst control method for emergency disposal of gravelly soil barrier lake

The invention relates to the technical field of natural geological disaster emergency disposal and outburst flood prevention and control, and particularly discloses a gravelly soil barrier lake emergency disposal grading outburst control method which comprises the specific steps that multiple stages of gabions are arranged on the downstream slope of a barrier dam and wrapped and protected by an impermeable covering film to serve as the scouring datum plane of each stage of outburst, and the gabions are arranged on the downstream slope of the barrier dam; and the downstream slope surface of each stage of gabion is covered and protected by a waterproof slope surface covering film. In the emergency disposal process of the barrier lake, the slope surface covering film is removed step by step, the slope surface is exposed, and under the scouring and undercutting action of discharged water flow, the slope surface is damaged, the gabion collapses, and the barrier dam breaks from high to low step by step. Through the