2Analysis of Affecting Factors on Gas Occurrence Regularity of No.3 Coal Seam in Zhaolou Coal Mine5-8
10The Optimization Investigation of Drilling Hole Positions For Ground Gas Pumping in CMM Mining Area37-39
14Vertical Shaft Freezing and Outside Wall Fast Construction Technology in SouthAirshaft of Yuwu Coal Industry50-52
19Failure Mechanism and Rational Support Design of Roadway Deformation in Soft Coal Seam with Composite Roof63-66