Abstract
Ground stress, gas pressure, mechanical properties of coal and other parameters are important factors affecting coal and gas outburst, but the most obvious factor is unclear. In order to reveal the main influencing factors of outburst, this paper established a energy model based on the principle of energy conservation. With the help of MATLAB, the energy contribution of stress, gas pressure and physical and mechanical properties of coal was analyzed. The research shows that the gas expansion can be 2 orders of magnitude higher than the elastic energy of coal, and it is the main energy of coal and gas outburst. The gas pressure directly affects the size of gas expansion energy, it has the greatest contribution to the energy of coal and gas outburst. Stress has little contribution to the energy of coal and gas outburst, but the stress is the controlling factor of the energy release zone, the stress first controls the range of the energy release zone and then affects the release of gas expansion energy. mechanical properties of coal including Modulus of elasticity, Poisson ratio Cohesion, Friction angle etc. has little energy of coal and gas outburst.
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.
