Since 1989 the pioneering use of subgrade stress release method to rectify multi-story buildings located on soft soil, more than 140 practical examples were presented here.

Since 1989 the pioneering use of subgrade stress release method to rectify multi-story buildings located on soft soil,more than 140 practical examples were presented here.

Several rectification methods,including stress relaxation method,additional stress method and ground stiffness softening method,were combining together.

Simulation of building rectification by stress relief method;

For determining the state of ground stress in the deep mining, the determination of ground stress has been carried out The stress relief method and the triaxiai strain gauge have been used.

An indoor experiment is conducted for rectifying a reduced-scale model of leaned structure on collapsible loess using a synthetic forced settlement method,which integrates stress relief method,additional stress method and ground stiffness softening method according to the properties of collapsible loess.

The experiment of forced settlement rectification through the stress relieving method is introduced for a reduced-scale model of inclination building.

With an engineening example,the principle of stress relieving method,the construction method and rectifying procedure control in longitudinal direction rectification are introduced.

According to the principle of insitu stress measurement with stress relieving method,a method for virgin stress solution based on finite element model was supposed which can be applied to rock mass with nonideal characteristic.