Geomechanics Research Lab at Hong Kong University of Science and Technology

The Geomechanics Research Lab at Hong Kong University of Science and Technology focuses on developing theoretical and computational approaches to model and understand the multiscale and multiphysics properties of granular materials and porous media, with applications to geomechanics problems such as landslide, debris flow, soil liquefaction in foundation, slope and pavement engineering as well as borehole stability and hydraulic fracturing in reservoir geomechanics. We endeavour to develop micromechanics-based constitutive models and robust multiscale and multiphysics computational tools to enhance our predictive capabilities on the behavior of granular solids in an ambience of multiphase interstitial fluids and subject to coupled mechanical, hydraulic, thermal loads and chemical processes. With a particular interest in advancing the foundamental understanding of key soil behavior, we also aim to demistify how instability phemenona such as soil liquefaction and strain localization interplaying with the key microstructural mechanisms in granular media on their occurrence and formation.

Voronoi cell of granular particles
Particles resting in Voronoi Cells
Voronoi cube
3D packing partioned by Voronoi cells
Complex shape particles packed in a cylinder
Cylindrical packing of complex shape particles
Sand grains
Natural sand grains
The force chain netowork in a sand at critical state
Critical state contact force network
3D particles generated by Fourier-shape descriptors
3D particles generated by Fourier-Voronoi method
Granular flow impacting on a water basin
Landslide impacting on water basin
Sandpiling in water tank
Sandpiling in a water tank
Debris flow impacting barrier
Debris flow impacting on barrier