THE EXPERIMENTAL STUDY OF DYNAMIC STRENGTH OF AEOLIAN SOIL IN WEST OF LIAONING PROVINCE

Dynamic properties and liquefaction characteristics under dynamic loads of Aeolian soil in the west of Liaoning province were studied through dynamic triaxial tests. The dynamic strength of Aeolian soil was determined when the seismic fortification intensity is 7 degree under different test control conditions, including dynamic amplitudes, consolidation ratio and consolidation pressure. The empirical formulas relating dynamic strength to consolidation ratio and consolidation pressure were obtained by the regression analysis of the experimental data by using Excel. Tests and regression analysis results show that dynamic strength of Aeolian soil is proportional to the confining pressure and the consolidation ratio. The soils' liquefaction strength was also studied. Liquefaction shear stress ratios under different consolidation ratios were obtained. Test results show that the liquefaction shear stress ratio is proportional to the consolidation ratio. The test results provide some practical guidance for the projects in west of Liaoning province