Abstract
The grey relational analysis method based on grey system theory is used, to make theoretical analysis of the chemical factors influencing the cohesive soil dispersion, and the pinhole test and pieces test are adopted to make further experimental analysis of the influence factors of sodium ions, pH and so on. Grey correlation analysis showed that the correlation between pH and sodium ion concentration is relatively high in the chemical properties. At the same time, through the further study on the chemical factors of cohesive soil, we can find that to acquire dispersive soil, it is necessary to have higher pH and higher Sodium ions concentration.
