Device for annular prestress reinforcement by filling high-pressure elastic pipe with curing material

The utility model relates to an annular prestress reinforcing device for filling a high-pressure elastic pipe with a curing material. The annular prestress reinforcing device comprises a counter-forcering and the elastic pipe, wherein the counter-force ring is arranged on the inner side or the outer side of a structure needing prestress application, the elastic pipe is arranged between the counter-force ring and the structure needing prestress application, the elastic pipe is provided with a slurry inlet and a slurry (gas) outlet, and consolidation slurry can be poured into the elastic pipe to enable the elastic pipe to expand; the elastic pipe compresses the counter-force ring and the structure needing to apply prestress; after consolidation slurry is poured into the elastic pipe and consolidated, the counter-force ring provides counter-force, and the counter-force is transmitted to a structure needing prestress application through the elastic pipe and the consolidated consolidationslurry in the elastic pipe