Abstract: The stability of a rock joint was often dominated by one or more major asperities along the slip surface with a large bearing capacity to resist instability. In this study, direct shear tests were performed on artificial ...

Abstract: To reflect the contributions of different-ordered asperities to the peak shear strength, a directional uphill projection area parameter was proposed to estimate the joint roughness coefficient (JRC) for two-dimensional ...

Abstract: Massive voids form in underground mines due to the continuous removal of valuable minerals. Backfill and pillars are commonly built into the voids to provide both local and regional support. The backfill material cannot ...

Abstract: During underground mining excavation, dynamic disturbances (e.g., blasting) may accelerate rock creeping and induce unstable failure. It is crucial to properly quantify the impact of dynamic disturbances on creeping behavior ...