Rockburst hazard determination by using computed tomography technology in deep workface

Investigation into Mechanism of Floor Dynamic Rupture by Evolution Characteristics of Stress and Mine Tremors: A Case Study in Guojiahe Coal Mine, China

“…However, complex geological setting and mining activities make it extremely difficult to obtain the in situ stress field in time and space. To eradicate this problem, many researchers have studied the P-wave tomography for evaluating the high stress in coal mines [34][35][36].…”

Case Study of Passive Seismic Velocity Tomography in Rock Burst Hazard Assessment During Underground Coal Entry Excavation

“…For instance, Hosseini et al (2012Hosseini et al ( , 2013 used passive seismic velocity tomography to evince the stress state around a longwall mining panel, found that high-velocity regions matched regions under high-abutment stress, and found that the stressed zones move as the working face is advanced. Dou et al (2012Dou et al ( , 2014 conducted seismic velocity tomography at regular time intervals during longwall mining and found that rock bursts, or strong tremors, mainly occurred in high-velocity, or high-velocity anomaly, regions. Based on seismic tomography undertaken in conjunction with microseismic monitoring, Si et al (2015) reported that the seismic tomography can accurately detect coal heterogeneity and reflect mininginduced stress changes around a longwall panel.…”

In situ identification of high vertical stress areas in an underground coal mine panel using seismic refraction tomography

“…Unfortunately, these failures have caused not only economic losses but also hundreds of lives. According to some latest researches, dynamic failure events are directly related to high stress areas and geological structures in underground rocks, especially high stress areas in underground panels (Cao et al, 2001;Dou et al, 2012;Fisne and Esen, 2014;Hanson et al, 2002;Xu et al, 2006). Therefore, locating high stress areas is a key factor for predicting or preventing dynamic hazards.…”