An elastoplastic damage model for geomaterials and analysis of strain localizaion of arch dams;

Method for developing hardening parameter independent of stress path for geomaterials;

Research on point safety factor of shear failure geomaterials

A new state-space vector was built to change the typical single-input-single-output linear stationary system model of the rheological constitutive model of the geotechnical material into its state-space representation,it was proved that the model was completely controllable and observable because its controllability and observability matrices were the filled ones.

The size error of TC among different samples is found out through experimental results and numerical simulation, which offers a solution to the measurement of TC of the geotechnical materials in site.

Finite element modeling of geomaterial using digital image processing and computerized tomography identification;

Determination of dilatancy angle for geomaterials under non-associated flow rule

Preprocessing methods for microstructural images of geomaterials

In this dissertation, within the framework of the principles of continuum mechanics, based on research results of elastic-plastic constitutive models for geotechnical materials, the method of derivation of multi-dimensional elastic-plastic increment constitutive model is proposed under general loading; the stress increment considering the.

Breakage mechanics conceptualizes the geological materials as binary structural bodies consisting of bonded blocks and weakened bands.

A new theory called breakage mechanics is proposed for geological materials.

In this paper the present state in understanding fundamental properties of the geological materials, existing theories and methods forthe analysis of their deformation are reviewed and appraised.