We are equipped with rigorous numerical simulation schemes and advanced imaging techniques in conjunction with well-designed experimental methods to explore how geomaterials behave.
[Classification of sand types and estimation of shape parameters of sands by deep learning]
[Evaluation of hydraulic permeability for carbonate rocks based on X-ray CT images]
[Effectiveness of infiltration and cleaning for porous blocks: In-situ testing and laboratory experiments]
[Development of micro-cracking in granite by carbon dioxide stimulation]
[Hydraulic stimulation: Phase field model]
- Waterless fracturing sequesters 'Carbon Dioxide' with the development of microfractures.
- The newly developed technique - Time-delayed pressurization - reduces the breakdown pressure and mitigates the acoustic emission.
[Hydraulic stimulation: Imaging]
- The 3D x-ray computed tomographic imaging helps identify the fractures and evaluates their morphological characteristics.
[Enzyme-Induced Carbonate Precipitation (EICP) and Soil Improvement]
- The carbonate precipitated in soils strengthens soils and its application includes the soil stabilization and dust suppression.
[Lattice-Boltzmann method: Two-phase fluid flow]
[Lattice-Boltzmann Method: Multi-phase fluid flow]
- GEMS explores how two-phase fluid flows in the pore by Lattice-Boltzmann method. We evaluate the effect of capillary number, viscosity ratio, and Reynolds number in fluids and see how these variables determine the fate of spatio-temporal evolution of fluids at micro-scale by adopting the virtual 3D images from X-ray computed tomography.
- The examples include the geological sequestration of carbon dioxide and its storage optimization, fate and transport of contaminant, gas flow during hydrate production, and hydrocarbon recovery.
[Deep Learning: crack detection]
- The hydraulic fracture is detected by 'Deep learning' approach which is now being applied to 'digital geo-images' with the application of 'maintenance and inspection' of infrastructure.
[Carbonation in Oil well cement]
- Oil well cement seals the borehole in the CO2 storage site and X-ray CT imaging virtually identifies the reaction zones in conjunction with chemical analysis with the cement matrix.
[Gas hydrate bearing sediment]
- Characterization / In-situ testing / chamber development / production
[Micromechanics]
- Micro-scale analysis of particle-pore behaviors
[Engineered soils]
- Hydrophobic sand and its characterization (initiated at Lehigh Univ.)
- Hydro-physical features
[Lightweight Aggregate and fractures in concrete]
- Application of LWA in concrete
- Discontinuity in cementitious materials
[Particle shape analysis]
- Particle shape effect on geophysical and mechanical properties
- Shape descriptors
[Environmental Construction Materials]
- NOx removal of TiO2-porous block
- Drainage and removal capacity