Abstract
For a long time, the faults on both sides of the working face have been the technical problems faced by the coal mining face. Aiming at the situation that both sides of 7509 comprehensive workings in Wuyang coal mine are near to big faults, and through several long and short hollow alleys, the theoretical analysis, numerical simulation and other methods are used to study the fracture mechanism of the roof plate of comprehensive workings in both sides of the faults and the technology of safe and fast hollowing of the workings. Through theoretical calculation and numerical simulation, it is finally determined that the filling strength of 4 MPa is the most suitable. And through the field industrial test, it is proved that the working face can realize rapid, safe and stable mining after filling with ultra-high water material.
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: International Journal of Natural Resources and Environmental Studies
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.
