Spalling Control Technology and Practices in Fully Mechanized Longwall Mining Face in Deep Inclined Soft Seam

Due to the complicated geological structure,high inclined seam and soft coal of the F15-17-11081 coal mining face in No.13 Mine of Pingdingshan Coal Mining Group,the spalling and the roof falling would be occurred during the coal mining operation and thus the coal mining face would be difficult to be in a normal operation.With the analysis and study,the technical measures of the pilot bolts were made to prevent the spalling and the roof falling and the pilot bolting to control the coal wall of the coal mining face were conducted with good results.Thus the production of the coal mining face could be in normal and could have a stable production and a high production.