Acoustic emission characteristics of different brittle rocks and its application in brittleness evaluation

Rock brittleness is an essential factor affecting underground engineering disasters and energy extraction. A large number of cracks are generated during rock destruction, and many acoustic emission (AE) signals are accompanied. The propagation speed and modes of cracks in different brittle rocks differ during failure, and their AE signals also show differing characteristics. In this study, uniaxial compression experiments cooperating with AE...