Gaobo Zhao

Entry-scale investigation on shale roof model calibration considering anisotropic brittle failure in U.S. coal seams

In U.S. underground coal mines, immediate/main roofs are usually composed of laminated shale, which exhibits strong anisotropic brittle failure behavior due to the presence of bedding planes. Existing numerical models often fail to accurately capture this behavior, as they neglect the dependence of strength and elastic...