Numerical Simulation of Mining Damage of Coal Seam Floor in Guocun Field

Study on the influence of mining feature is the premise condition on water inrush from coal floor of the coal seam floor rock after mining,to determine the breaking zone or floor crack zone is particularly important,and it will provide the basis for water prevention measures before mining.This paper uses FLAC3D method to conduct numerical simulation research on bottom stress field,deformation and failure characteristics and influencing factors in the mining process of Guocun field to more practically study the coal seam floor in Guocun field 2-1 coal mining process and find the failure rule.