ADVANCE IN RESEARCHES OF THE STONE COLUMN COMPOSITE FOUNDATION AND ITS ANALYSIS

In this paper, the authors first review advances in research of anti-liquefaction mechanism, assessment methods for anti-liquefaction and dynamic analysis of stone column composite foundation. Past research focuses on the drainage effectiveness and densification effectiveness of stone columns. However, not enough attention has been paid to the horizontal shear stress introduced by stone columns in previous studies. The assessment method for anti-liquefaction of the stone column composite foundation should also be further emphasized. Dynamic analysis is still based on the visco-elastic theory. Therefore, elastic-plastic and visco-elastic-plastic effective stress dynamic analyses should be enhanced.