Chaozhong Qin

Rayleigh-wave attenuation and shallow displacement response in saturated soils containing trapped nonwetting fluids: an oscillation-modified Biot framework

Rayleigh-wave attenuation, velocity dispersion, and shallow displacement response provide important information for geophysical characterization and dynamic-response assessment of fluid-bearing saturated porous formations. In multiphase subsurface media containing trapped nonwett...

Thermoresponsive mineral grout for autonomous oxygen isolation in underground coal pillars

A thermo-responsive mineral-based grout composite (GC) was developed for rapid sealing of fracture networks in underground coal pillars, aiming to eliminate oxygen ingress and prevent spontaneous combustion in goaf areas. Coal spontaneous combustion triggered by air leakage poses...