1Research on gas pressure evolution law based on mining stress incrementZHANG ShilingTest Research1-52Research on microseismic monitoring and movement law of overlying strata in near horizontal thick coal seamLIANG Yunpei, WANG Haibin, LI Quangui, HU Liangping, JIANG Zhizhong, SONG MingyangTest Research6-11,183Investigation on overburden failure characteristic and height of water-conducted fracture zone due to fully mechanized caving miningLIU Zhuoran, ZHAO GaoboTest Research12-184Analysis of temperature field of surrounding rock and influencing factors under the seasonal variation of air temperature at the entrance of roadwayGAO Jianan, LI Chao, WU Fengliang, MA LiTest Research19-245Numerical simulation of gas distribution system in low concentration coalbed methane adsorption drying deviceXIAO LuTest Research25-296Experimental research on the resistance performance of a new type of gel foam materialWANG Jianguo, LIU Xin, ZHENG ChenguangTest Research30-33,397Study on forced initial caving technology of deep hole presplitting blasting in hard roofJI Jianshuai, LI Zhihua, GE Shengwen, CHENG LimingTest Research34-398Optimal simulation research on gas extraction parameters of long boreholes in roof strike of Sihe MineHAO Changsheng, WANG Haotian, JIA TinguiTest Research40-469Research on gas drainage hydraulic fracturing improvement technology for soft and low permeability coal seamWANG JianweiTest Research47-5210Research and application of combined antireflection technology of high pressure hydraulic fracturing and punching in low permeability coal seamQIN Jiangtao, CHEN YutaoApplication Techniques53-5711Research and implementation of integrated operation integrated energy group intelligent emergency command platformZHAO Kaigong, FANG HengApplication Techniques58-64,7112Application test of coal gangue-based concrete in underground roadway hardening engineeringSHEN Haisheng, HE Weihong, ZHAO Chunzhou, WU Bingzhen, LU YinlongApplication Techniques65-7113Development and application of gas drainage borehole plug removal and repair equipmentBA QuanbinApplication Techniques72-7614Three dimensional gas drainage technology and its application in slicing face of coal mineZHENG Fei, FU Junhui, WANG RanApplication Techniques77-8115Application of ground well extraction technology in large dip and multiple coal group in Xinjiang mining areaWANG GuanghongApplication Techniques82-8516Soft rock deterioration control technology in Jurassic Coalfield of northwest ChinaLYU Yuguang, QIAO Wei, XIAO Qinghua, ZHANG Yongqiang, HAN Gang, LIU JianrongTechnical Experience86-9217Study on the application of gas drainage technology in bedding long drillingQIAO Wei, WANG Kai, CHENG BoTechnical Experience93-9818Key technology and practice of gas extraction in steep extra-thick coal seamJI Chaohui, CUI HongqingTechnical Experience99-10319Development of mine transient electromagnetic instrument based on constant large current emission and bipolar high speed acquisition and receptionZHANG LeiTechnical Experience104-10720Comparative study and application of weld groove of drum of mine mixer based on finite element analysisGUO Caiping, XIANG DaohuiTechnical Experience108-112 