1) strength of unsaturated soil
Effect of suction force on the strength of unsaturated soil;
With equilibrium method the dynamic stability of soil-nail bracing of unsaturated soil slope is analyzed, considering the connection between the shear strength of unsaturated soil and water content.
2) unsaturated soil intensity
Based on transient saturated-unsaturated seepage FEM analysis of earth rock-fill dams under the condition of water fall in reservoirs,unsaturated soil intensity and density are taken account of with water containing,and seepage force action,slope stability changing rule and the effect of penetrative coefficient on it are analyzed by using shear strength reduction FEM in the process of water fall.
3) unsaturated soil shear strength theory
The slope transient seepage field under the conditions of rainfall infiltration is simulated based on porous media saturation-unsaturated flow theory;by use of limit equilibrium theory,the influence of rainfall intensity,rainfall holders,prophase rainfall and rainfall pattern on slope stability are studied based on unsaturated soil shear strength theory and the results of seepage analysis.
4) shear strength of unsaturated soils
5) Unsaturated Soil Strength Theory
6) double-variable unsaturated soil strength formula
According to the double-variable unsaturated soil strength formula, the relationship between the soil shear strength and suction strength with the water content is deducted, and then the mechanism of the reduction of the uplift bearing capacity for the expansive soil under the soaking status is illustrate.