1Numerical Simulation Study on Gas Drainage Effect by Through-beds Hydraulic Flushing HoleHAO Congmeng, LIU Hongyong, CHENG YuanpingTest·Research1-42Study on Gas Seepage Laws and Bedding Effect for Pressure-bearing Drainage Boreholes in Front of the Working FaceTIAN Kunyun, FU JiangweiTest·Research5-83Study on New Spot Sampling Device of Gas Content in Coal Mine UndergroundLI Zhu, DUAN Yuan, XIE XichaoTest·Research9-114Experimental Study on Effect Factors of Gas Ignited by Nonmetallic Tubing Electrostatic SparksZHANG Xulei, YANG Huayun, KONG LinggangTest·Research12-145Experimental Study on Gas Adsorption Laws of Acid Modified Coal SamplesZHOU Chunjie, YANG XiaobinTest·Research15-186Application and Detection of Measurement Precision for Directional Drilling Construction in Underground Coal MineHUANG HanjingTest·Research19-21,257Prediction for CH4 Isothermal Adsorption Curve of Coal at Low Temperature Based on Adsorption Potential TheoryMA Xiangpan, WANG Zhaofeng, REN HaoyangTest·Research22-258Influence of External Conditions on Explosion Characters of Coal DustCHI Xiuwen, YUE YuanyangTest·Research26-28,329Experimental Study on Effect of Coal Partical Size on Hydraulic Fracturing in Similar MaterialsTest·Research29-3210Study on Coal Dust Diffusion Laws at Fully Mechanized Coal Mining FaceSUI Xiuhua, WANG Fengjiao, ZENG Xianwei, HUANG Yunqian, CAO DongdongTest·Research33-3611Experimental Research on Super Absorbent Polymer in Fire-proof Performance of CoalTest·Research37-40,4512Experimental Study on Low Temperature Oxidation of Desorption Coal in Constant TemperatureTest·Research41-4513Simulation Study on Effect of Fault Throw on Activation of Inverse FaultBAO Ran, LI KaiTest·Research46-48,5214Determination of Weighting Interval Based on Elastic Foundation Beam ModelCHEN LeiTest·Research49-5215Experimental Study on Stress Change Laws of Roof and Floor and Fault Induced by Two Panels Mining of Reverse FaultZHAO Yapeng, ZHANG Peisen, WU ShouxinTest·Research53-56,6016Experimental Study on Deformation and Failure Characteristics of Circle Roadway and Anchorage Support Contrast in Layered Rock MassLUO Feng, WANG Kai, LI Haijiang, CUI Jingkun, GUO Lijun, ZHANG HaoTest·Research57-6017Experimental Study on Soft Coal Brazilian Split and ApplicationTest·Research61-63,6818Research on Migration Evolution Process and Mechanical Parameters of Saturated Loose Soil Under the Influence of MiningLI Zhu, XIE FengTest·Research64-6819Research on Anti-slip and Safety of Single Container Friction HoistHU Tingting, XIE Lirong, Mutellip Ahmat, CHANG Yifeng, GAO LeiTest·Research69-72,7620Goaf Nitrogen Injection Fire-fighting Technology of Shallow Buried Depth Coal SeamLIU Yuliang, PENG Baoshan, MENG Wenjun, LIU Liren, WANG WeidongTechnology·Innovation73-76 