1Study on dynamic water grouting technology implemented in Dayuan Coal Industry CompanyWANG Zhuo, LIAN Huiqing, FANG Xiuzhen1-52Experimental study on physical and mechanical properties of coal with different moisture contentQIU Jilong6-93The working face of comprehensive water prevention and control technology research and applicationYANG Haijun10-124Gas Control Technique In Haizhi CoalmineNIE Zheng, XU Chuantian13-175Analysis on capacity evaluation of gas prevention and cure in coal-corporationWANG Zhiliang, ZHU Kai, GU Mengping18-20,326Rock heald dig intelligence spray dust technology application and effect analysisLIU Huan21-247Analysis of best air supplement pressure of active borehole sealingYU Jincai25-288Research on the distribution regularity of three zones in goaf based on temperature and density of O2YANG Zhongdong29-329Study on gas drainage parameters measurement andoptimization of perch drillLI Tao, XIE Hong, WANG Zhiliang33-35,5510Using Potential Energy Measurement and Tracing-gas Technique to Detect Gob Area Air LeakageLI Yuming36-3811Design of the Detecting Device for Gas Drainage Hole in Coal MinesWANG Xuming, LI Xiaoping, ZHANG Wen39-4112Technology and application of in-advance geophysical detection in coal minesLI Jian, XU Haitao, LI Yongjun42-4413Study on upper and lower Strata Structure influence on caving zone distribution in Fully Mechanized Sub Level Caving FacesLI Hongtao45-4814Analysis of Floor Heave Mechanism and Composition of Gas Tail GatewayXU Haitao, LI Hao, KANG Huaiyu49-5115Mechanism analysis of the End face roof collapse on Mechanized mining face via wind oxidization zonePENG Keping, TIAN Duo, SHI Haoyu, SHI Laiyang52-5516Feasibility Study on Bolting Technology of Coal Roadway along the Bottom of Extremely Thick Coal SeamCAO Hubin56-5917Coal roadway bifurcation zone tunneling support measures analysis and applicationZHANG Wei60-6318Study on Terminal Velocity of Particles in the Teetered Bed SeparatorLI Mei64-66,7119The study of battery charging control in Photovoltaic power generation systemsHUANG Yinghua, WANG Liangyu, HAN Fei67-7120The laboratory construction scheme for the determination of basic parameters of gas disaster prevention and controlLI Zhaohui, ZHONG Chuan72-76 