The deviation of the two piles was corrected with integrative correction methods, including unloading stoppage, reverse heap-loading, unloading by digging holes(pits), and forced pooling.

Analysis of consolidation effects of Zhoushan National Oil Reserve Base improved by preloading combined with plastic drains;

Calculation methods of foundation stability in process of preloading;

The whole course in the preloading treatment of a soft clay foundation was introduced.

The application of vacuumization plus pre-loading to the treatment of soft ground on Hangzhou-Ningbo expressway;

Application of Biot s consolidation theory to improving soft ground by preloading method;

Application of preloading method to soft foundation treatment is discussed.

On the base of certain project using preloading method to settle its soft foundation in Shanghai, the stability of different loading methods is analyzed in this paper.

Experimental study on effect of treatment of soft foundation with vacuum-surcharge preloading;

Research on plastic drainage plate surcharge preloading in treatment of highway's soft foundation

Considering the special engineering geology condition of soft soil foundation in Qingdao seashore expressway,vacuum preloading、surcharge preloading、vacuum combined surcharge preloading and dynamic compacted stone pier are adopted to strengthening soft soil foundation.