Support reinforcing device for civil engineering

The utility model relates to the technical field of support reinforcing, in particular to a support reinforcing device for civil engineering, which comprises a support body and a limit ring, a plurality of adjusting blocks are arranged on the surface of the limit ring, sliding grooves are arranged inside the adjusting blocks, and a separating groove for dividing the limit ring into two parts is arranged on the surface of the limit ring. The surface of the limiting ring is provided with a locking assembly used for locking, the limiting ring is divided into two parts through the separation groove, the limiting plate is connected through the connecting screw to enable one end of the limiting ring to move, the support is locked through locking force generated by the locking assembly, and therefore the reinforcing and supporting effects are achieved. The support needing to be reinforced is connected through the limiting rings, the limiting rings can be installed in the front, back, left and right directions of the