1Nonlinear Control Research on Explosion Proof Inspection Robot of Mechanized Mining FaceGUAN ShiyuanDesign and Research1-72Development of a Ground Anchor Device for Open-pit Coal Mining EquipmentZHANG XueruiDesign and Research8-113Research and Application of Front and Back Non-axis Double Helix Wet Concrete Spraying MachineLIU ZiwenDesign and Research12-184Research and Development of Explosive Auxiliary Pushing Vehicle for Deep Hole Blasting of RoofWANG Kaisong, YAN Hu, GU WeiweiDesign and Research25-295Development and On-site Application of a New Type of Long Borehole Normally Closed Fixed-point Sealed Sampling DeviceGUO KunmingDesign and Research30-346Basic Theory and Key Technologies of Intelligent Mining in Jinggong Coal MineZHANG KeIssue Discussion35-38,457Application of Comprehensive Mine Geophysical Exploration Technology in Coal Working FacesJIANG XuIssue Discussion39-458Ultra-High Molecular Weight Polyethylene Dual Anti-composite Material Application in Stage LoaderTAN TingshuaiIssue Discussion46-509Application of Millimeter Wave Radar in Collision Prevention of Coal Winning MachinesYANG Xiaofeng, TONG Yu, TANG JiaweiIssue Discussion51-54,5910Research and Application of Intelligent Control of Coal Flow in Mataihao Coal MineYANG FangmingIssue Discussion55-5911Surrounding Rock Deformation and Multiple Support Technologies in Tunnel Excavation Based on Spatiotemporal EffectsFAN XiaoweiIssue Discussion60-6512Current Status and Development Prospects of Centralized Grease Lubrication Technology for Coal Winning MachinesLIU KaiTechnical Practice66-68,7113Design and Application of Anti-rotation Device for Coal Winning Machine Cutting MotorDONG ChaoTechnical Practice69-7114Optimization Design of the Structure of the Ultra Large Transmission Drum Shaft for Belt ConveyorsLU Zhouyan, LI LiuTechnical Practice72-7415Application of Online Monitoring System in Coal Mine Underground Water Pump HouseLIU Xinlong, SONG Zhongyi, LI GuoqingTechnical Practice75-78,8216Design and Optimization Analysis of Flexible Shaft of Coal Winning MachineWU LeiTechnical Practice79-8217Application of Underground Filling on External Circulation Vertical Roller Mill Used in Disposing GangueCUI XiaoyuTechnical Practice83-86 