Abstract:With 4 × Taking the 20m high-speed interchange ramp correction and restoration project as the background, combined with the structural characteristics of the on-site interchange ramp and the space under the beam, two types of correction and restoration systems and jacking and sliding jack synchronization systems were designed. The jacking jack was used to provide active correction force, drive the beam slip, and achieve lateral correction and restoration of the beam. The key design points and construction techniques of the deviation correction and restoration plan were emphasized. Engineering practice has shown that the design is reasonable, the construction is economical and convenient, and the expected engineering effect has been achieved. It has reference and promotion value for similar projects