To advance the unified multiphase elastoplastic and hypoplastic constitutive models at micro-scale for seamlessly bridging solid-like and fluid-regimes in complex multiphysics environments.

To develop PFEM-DEM-PD, SPH-DEM-PD and MPM-DEM-PD hierarchical multiscale frameworks with sound unified constitutive models for simulating the triggering initiation of geohazards.

To develop three multiscale numerical frameworks to simulate the dynamic run-out process in large deformation in phase-transition and rate-dependent fluid-like regimes of different geomaterials. 

To develop three multiscale numerical frameworks to simulate the deposition process and interaction with obstacles and infrastructures for high-fidelity predictions and a better understanding of associated mechanisms. 

To provide the qualitative and quantitative evidence for numerical validation (in WP1~WP4) via a series of laboratory experiments on soils, rocks, soil-rock and debris-ice mixtures, including conventional triaxial compression tests, high-speed ring-shear tests and rotating drum tests.

To provide qualitative and quantitative observation for validation and a better understanding of the complex mechanisms of dynamic run-out and deposition/interaction processes in large deformation.

To develop a region-scale machine-learning toolbox for high-fidelity simulating the chains of geohazards in some specific mountainous regions under rainfall-induced and/or glacier-retreat conditions by combining expertise of applied geology, hydraulics, geomechanics and geotechnics and computer science.