Abstract
The studying of the nonlinear dynamical of rock mass has directly effect on the forecast and the prevention of the disasters in coal mining. However, there have very few tests of the large-scale simulation experiments of dynamic characteristics of rock mass in deep mining. This article focuses on the protective seam in Ji14-31010 of Tian’an Twelvth Mine with the experimental prototype. The simulation model test is carried out to study the mining pressure in Ji14. The displacement and stress of the Ji14 is obtained in the excavation process. The displacement and the stress change law of the underlying coal and rock mass are analyzed from the test data. The analysis results give some suggestions to the project design.
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 callDisclaimer: 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.
