Strata Behaviors and Rock Burst–Inducing Mechanism under the Coupling Effect of a Hard, Thick Stratum and a Normal Fault

The study of strata behaviors of hard, thick stratum (HTS) and faults in underground coal mines is significant to understanding and predicting the mechanism of rock bursts. By considering the occurrence of a HTS and a normal fault (NF), the strata behaviors and rock burst–inducing mechanism were studied using the universal distinct element code (UDEC) numerical simulation and field observation. The results show that prior to failure, a HTS...