2Industrial Experiment Research on Coal Ploughing of Extreme Low Coal Seam under the Condition of Bad Roof in Tangzhuang Coal Mine3-4,7
7Research on Rules of Top Coal Migration and Rock Pressure Behavionr in Fully Mechanized Caving Face19-21
11Practice and Study on Optimizing Design Blue Print of First Mining District in Xinglong Coal Mine39-40
15Application of Intrinsically Safe Digital Manometer and Data Collector to Prevent Pressure Bump of Coal Mine50-51
17Countermeasure of Water Prevention and Hydrogeologic Effect Caused by Closed Pit in Both Hanqiao and Xiaqiao Coal Mines67-69
18Application of Drill Hole for Gas Extraction in the Drilling from Floor Rock Roadway Floor Carry out Gas Suction in Advance in the Process of Excavation of Coal Roadway72-73