Temporal-Spatial Evolution of Acoustic Emission in Raw Coal with Pre-Fabricated Roadway: An Experimental Study for Mining Geomechanics
Roadway surrounding rock stability under high in-situ stress is a core challenge in mining geomechanics. This paper presents an empirical and analytical study on the temporal-spatial evolution of acoustic emission (AE) during fracture of raw coal specimens with a pre-fabricated simulated roadway. A true triaxial loadin...