1Mathematical Simulation of Effect of Different Coal Particle Shapes on Gas Desorption Diffusion LawLI JiangongTest·Research1-42Extraction Characteristic of Pressure-relieved Coal Bed Mathane by Surface Borehole in Mining Area of Deep Coal SeamFANG Liangcai, TONG BiTest·Research5-8,123Research on Coking Dust Wettability of Strong Cohesiveness and Easy MuddingMIN Yaotao, ZHAO Wenbin, ZHU Guangli, WANG Minghua, XU Meng, ZHANG ShouyongTest·Research9-124Numerical Simulation of Fluid-structure Interaction in Elbow Segment of Thickening Colloid Conveying PipelineJIN Yongfei, LI Haitao, MA Rong, ZHAO XiankeTest·Research13-16,215Numerical Simulation for Permeability Evolution Process of Excavation Roadway Surrounding Rock MassGUO Long, YU Shijian, SUN Kai, HUANG QisongTest·Research17-216Experimental Study on Impact of Dispersion of Coal Particles for Residual Coal Spontaneous CombustionQIN Yueping, SONG Huaitao, LIU Wei, XU Shimin, XIN XuepengTest·Research22-257Measurement System Test of Coal Mine Underground Rotary Drilling TrajectoriesLI Kesong, GUO QingTest·Research26-28,328Numerical Simulation of Single Fracture Rock Damage Under Uniaxial CompressionWANG Hui, GAO Zhaoning, MENG Xiangrui, YING ZhizhongTest·Research29-329Roof Control by Gangue Paste Filling Mechanized MiningDONG Enyuan, ZHAI Yingda, WEI Zhao, JIA Peng, REN ShuaiTest·Research33-3610Mechanical Mechanism of Overlying Loess Landslide Formation at Outer Edge of Mining-affected ZoneZHANG Jining, LONG Jianhui, WEI Hongxue, JING MingTest·Research37-3911Surface Movement Laws in Mining Steep Coal Seam Group of Thin Soil LayersZHAO Fei, YANG Shuangsuo, CUI Jian, LI Shufeng, LI PingTest·Research40-4312Calibration Test of Force-measuring Bolt Based on Fiber GratingLIANG Minfu, FANG Xinqiu, XUE Guangzhe, LIU XingguoTest·Research44-4613Determination Technology of Spontaneous Combustion Danger Region in Goaf of Fully Mechanized MiningFace in Shallow Coal SeamZHENG Zhongya, ZHAO Zhiyou, ZHANG Qun, XU ChangfuTechnology·Innovation47-5014Comprehensive Fire Prevention and Control Technology in Special Condition of High Gas Spontaneous Combustion Coal SeamZAN Juncai, REN Wanxing, FANG Shuqi, GUO QingTechnology·Innovation51-5315Spontaneous Combustion Prevention and Control Technology of Inflammable Thick Coal Seam with Large InclinationHAN Chengqiang, LI JiangongTechnology·Innovation54-56,6016Fire Area Judgment Technology of Spontaneous Combustion in Coal Mine Gangue DumpDU Wenzhou, SUN Lulu, YAN Guoqiang, HUANG QimingTechnology·Innovation57-6017Application of Solid-hole Screen Technology in Fire Extinguishing with Water Infusion for Soft Coal SeamLI QiaoqiaoTechnology·Innovation61-6318Drilling Construction and Water Prevention Technology in Broken Roadway Under the Conditions of High Pressure and Rich WaterZHANG Haibo, ZHANG YaohuiTechnology·Innovation64-6619Gob-side Entry Quickly Retaining Technology by Pre-control of Large-scale Concrete Block Assembly WallsLIN Dongcai, LUAN Hengjie, JIA Chuanyang, ZHANG ZhuangzhuangTechnology·Innovation67-7020Analysis of Methane Wind Power Lockout in Two Roadway Driving Face of High Gas Coal MineHE QingsongDesign·Development71-72,75 