Owing to their age, existing buildings are experiencing an increasing number of cracks in their walls, some even tilting gradually, with severe cases leading to ground collapses around them, posing significant danger. When it comes to strengthening and realigning existing structures, what are the characteristics of the jacking and realignment technology? How much do you know about it? Today, the editor at Henan Sanwei Building Technology Co., Ltd. introduces this issue to you, hoping it will be helpful.

The methods include the overall lifting and correction technique, pile driving reverse force lifting and correction technique, and high-pressure grouting lifting and correction technique, among others. The basic principle involves lifting the foundation or walls on the side with greater settlement using machinery or by injecting high-pressure grout with compaction or expansion properties, thereby resetting the foundation or structure. The characteristics of this method mainly include the following:

(1) The jacking and alignment method is generally used for partial alignment of buildings.

(2) When selecting this method for overall correction, it should be lifted layer by layer.

The ground stabilization process requires a longer duration.

(4) The high-pressure grouting jacking method has a relatively small lifting range and causes significant soil disturbance, thus it is used less frequently.

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