Study on the Gas Control Technology for Coal Seam Bottom Extraction Roadway Based on FLAC3D Simulation Software

Three dimensional numerical simulation technology is a technique that uses computer numerical methods to simulate physical phenomena in three-dimensional space, widely used in fields such as geological engineering, mining engineering, geotechnical mechanics, structural engineering, etc. It achieves analysis and prediction of complex systems through steps such as establishing mathematical models, discretizing solutions, and computational simulations. Three dimensional numerical simulation is based on numerical calculation methods such as finite element method (FEM), discrete element method (DEM), finite difference method (FDM), boundary element method (BEM), etc., combined with computer programs, to achieve numerical solutions for complex geological bodies, structures, or fluid mechanics problems. Therefore, using three-dimensional numerical simulation technology(FLAC3D) to solve the problem of gas control in near outburst coal seam bottom extraction roadway is very effective and common.