Transforming the Supporting Mode of the Methane Tailgate for Ensuring the Safe Production in the Stoping Period王淮盛, 戴志国, 郝宝惠5-8
The Finite Element Calculation of the Shaft-wall Thickness in Soft Strata of Gushan Coal Mine衣冠勇, 王淑萍19-21
Application of the Single Hydraulic Prop Lengthening Technology to Liuzhuang Loal Mine宋加宏, 纪海亮, 罗峰24-25
Cause Analysis and Countermeasures for the Air-reversing of the Secondary Shafe in Cheji Coal Mine王勇30-31
An Attempe and Analysis of Using SF6 Tracing Gas for Measuring the Coal-bed Methane Flowing State周蒲生, 宦煤生, 任海忠, 沈德祥37-38
