Abstract
To address the frequent occurrence of activation-induced rock bursts in fault zones during mining, the stress evolution and fault slip behavior of normal faults with different dip angles during mining are studied by mechanical models, numerical simulations, and engineering practice. The establishment of a mechanical model of faults and the deduction of the relationships between the fault slip and the fault dip angle θ and fault friction φ reveal the necessary conditions for fault slip. The results of an analysis of a numerical model show that the change in stress state in the surrounding rock caused by mining is the root cause of fault slip. During the mining process, the risk of fault slip changes as the working face advances, and the risk of induced fault slip is higher during mining in the footwall. With the increase in the fault dip angle, the risk of fault slip first increases and then decreases, and the most dangerous dip angle in terms of fault slip is determined. The simulation and field results are consistent with the theoretical results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Bulletin of Engineering Geology and the Environment
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
