Controlling Factors and Forecasting of Coal Seam Permeability in Jiaozuo Coalfield

Combining with the onsite testing results and laboratory testing results of coal seam permeability of Jiaozuo coalfield,the paper analyzes the influence of six controlling factors of coal structure,coal seam fracture,tectonism,coal rank,coal maceral and coal seam burial depth on coal seam permeability,and forecasts coal seam permeability of Jiaozuo coal field.