Study on Mechanism of Outburst Prevention by Hydraulic Extrusion Measure Based on Numerical Simulation

摘要

In this paper, large-scale numerical simulation software ANSYS is used to simulate and solve the hydraulic extrusion measure at the driving working face. It is analyzed that the change of the coal seam stress distribution around the hydraulic extrusion measure, the mechanics characteristic change of the coal and the change of the gas transporting way. Combined with the reality, the mechanism of outburst prevention is studied from the above three-aspects.