Device capable of quickly preventing bottom of steel arch from disengaging

The utility model discloses a device capable of rapidly preventing the bottom of a steel arch from disengaging. The device comprises a connecting steel plate on the steel arch, at least three pieces of round steel are arranged on the connecting steel plate in a penetrating mode, base plates are arranged at the lower ends of the round steel, threads A are arranged on the outer sides of the upper ends of the round steel, nuts A are arranged on the threads A, and the nuts A are supported on the lower end face of the connecting steel plate. The supporting device has the advantages that the supporting height can be flexibly adjusted, the situation that a traditional method cannot guarantee that the arch feet of the steel arch frame are completely and closely attached to a dense base layer can be avoided, the steel arch frame can always play a role in resisting deformation of surrounding rock in the construction process, and construction safety is guaranteed. 本实用新型公开了一种可快速避免钢拱架底部脱空的装置，包括钢拱架上的连接钢板，连接钢板上穿设有至少三根圆钢，圆钢的