The water level falling of the reservoir produces saturated-unsaturated unsteady seepage in the slope.

A saturated-unsaturated seepage pattern is developed to analyze a typical section of the longitudinal cofferdam in Fei-Lai-Xia Hydrocomplex Project, using the simplified finite element method.

The author has particularly researched into the prominent problems of seepage in water conservancy engineering based on the steady-unsteady and saturated-unsaturated seepage theory and numerical method by summarizing the former achievement.

Rocky Slope Stability Analysis Taking into Account Saturated-unsaturated Seepage Flow;

Research on capillary pressure-saturation curve for a single fracture in an unsaturated fractured mass;

Analysis on saturated-unsaturated steady seepage;

It mainly includes the transportation and transformation on contaminant in soil, unsaturated zone, underground water and clay impermeable layer, and numerical models stimulated the contaminant transportation.

The utilization of soil water in the unsaturated zone is of significance for agriculture,forestry,stock raising and the local eco-system.

Migration behavior of heavy metal and LNAPLs in unsaturated soils;

Centrifuge modeling of copper ionic migration in unsaturated soils;

Experimental study of BTEX transport in an unsaturated soil and groundwater system;