Correction belongs to special technical engineering, and the technical difficulty required is high and the risk is high. The success of the correction project depends on whether the appropriate correction method is adopted, and the information monitoring system is used to effectively control the construction process.
Analysis of building correction and righting methods
Jacking correction method: jacking method, jacking method, pile foundation lifting method, grouting lifting method
Method description:
1. Jack the foundation or superstructure on the side with large settlement to make it meet the design requirements vertically.
2. The jacking method is generally used for multi-storey or small high-rise buildings to correct deviations, and high-rise buildings do not need to use the pile foundation lifting method or grouting lifting method for correction;
3. When the overall correction is corrected, it needs to be mainly uniformly and successively jacked;
4. Ensure the reliability of the reaction force system;
5. When the foundation deformation is not stable, the reinforcement and replacement of the foundation foundation should be considered.
Hydraulic jack jacking correction method
There are two ways to jack with a jack:
1. The superstructure lifting and correction method is to set up a platform at the bottom of the frame column or shear wall, put a jack between the platform and the foundation, cut off the bottom of the frame column or shear wall on the foundation surface, and use a jack to jack it, so that the building reaches verticality, and then connect the structural gap after jacking with a reinforced concrete structure.
2. The overall lifting and correction method of the foundation is to drive the anchor pile on the original foundation, so that the bearing capacity of the pile foundation is greater than the load of the superstructure, and the jack is applied to make the superstructure lift together with the foundation to achieve the purpose of correction.
At the end of this article, we recommend a few construction cases to see the application of the above methods in real scenarios.