The Fully Mechanized Mining Practice under the Condition of Thin Coal Seam with Large Inclined Angle and Composite Roof

In order to solve the difficult problems of stoping under the condition of composite roof and thin coal seam with large inclined angle,the empirical relationship between the working face pseudo-oblique and the dip angle of coal seam has been obtained through theoretical analysis and field test.The fully mechanized mining equipment selection and mining technology,the support pattern of the two lanes were determined reasonably according to the occurrence condition of coal seam at working face.The problems of falling resistance of large angle,skid resistance,composite roof controlling were effectively solved through taking effective technical measures and strengthening field management.