1Test and Application of Coal Seepage Characteristics Under the Condition of MiningXU Dongliang, WU Renlun, WANG Jilin, MENG Lang, ZHANG Yong'an, SUN Xiaoqi, QIAN YingjieTest·Research5-82Study on Coal Pore Structures and Its Isotherm Adsorption Properties in Guizhou Mining FieldsSHEN Zhonghui, LI Xijian, XU MingzhiTest·Research9-123Complete Mechanical Mechanism and Control Principle of Sharp Floor Heave in Deep Coal GatewayLIU Yaming, GAO Mingshi, LIU YonghongTest·Research13-164Research on Sensitive Indexes of Coal and Gas Outburst Prediction for Coal Uncovering Face of Zhaojiazai Coal MineSUN Wenbiao, SHANG ZhengjieTest·Research17-205Study on Coal Adsorbing Supercritical Methane Based on Adsorption Potential TheoryCHAI Lin, WU Shiyue, NIU YuTest·Research21-23,276Research and Application of Early Forecast Indexes for Coal Spontaneous Combustion at 011805 Working Face of Jinfeng MineZHAI Xiaowei, MA Teng, WANG Kai, YU Zhijin, LIU Yongshan, ZHOU DongTest·Research24-277Numerical Simulation of Coal Seam Water Injection Wetting Radius in Driving FaceLIU Lingsheng, LIN Menglu, JIANG Zhong'an, JIANG Qunliang, JIANG GuangxinTest·Research28-318Numerical Simulation Study on Fire Preventing and Extinguishing Technology by Dry Ice in Mined AreaGAO Yukun, LIU Fuxin, FU Mingming, HUANG Zhi'an, ZHANG YinghuaTest·Research32-359Stress Evolutionary Laws of Retained Coal Pillar at Upper Layer in Forming and Recovering StageWANG ChunguangTest·Research36-3910Study on Pillar Width in Fully-mechanized Caving Section Based on Distribution of Deviatoric StressYIN Shuaifeng, HE Fulian, XIE Fuxing, ZHAO QifengTest·Research40-4311Evolution Laws of Abutment Pressure in the Period of Working Face Heading to Normal FaultGAO Lin, JIANG Jinquan, ZHANG Peipeng, WANG Pu, LIU YanqingTest·Research44-4712Influence of Different Laneway Sections on Coal Mine Refuge Facilities Borne Explosion Impact LoadLUO YiTest·Research48-5113Research and Application on Fracture Mechanism of Soft Rock Roadway in Longkou Mining AreaZHOU Jingkui, LIN JileiTest·Research52-54,5814Model Test and Numerical Simulation of Blasting Vibration in Open-pit Coal MineGAO Fuqiang, ZHANG Guangxiong, YANG JunTest·Research55-5815Influence of D/d and Terminal Tension on Bending Stress and Service Life of Steel Wire RopeYIN Jikai, LI Jishun, ZOU Shengyong, XUE Yujun, MA WeiTest·Research59-6216Hole-sealing and Gas Concentrating Technique for Bedding Gas Extraction Drilling Hole and Its ApplicationLIU Yanbao, XIONG WeiTechnology·Innovation63-6617Efficient Gas Drainage Technology Practice of Placing Screen Pipe in Borehole of Soft and Low Permeability Coal SeamZHANG Xule, LU JianshouTechnology·Innovation67-69,7318CO2 Fracturing Mechanism and Its Application in Floor Heave TreatmentZHANG Jiahang, ZHANG Xinghua, LI HaojunTechnology·Innovation70-7319Fire Preventing and Extinguishing Technology of Fully Mechanized Caving FaceWANG ZhiquanTechnology·Innovation74-76,8020Application of Slope Radar Technology in Surface Coal Mine Landslide ForecastWEI ZhonggenTechnology·Innovation77-80 