1Theory of longwall mining by using roof cuting shortwall team and 110 method——the third mining science and technology reformHE Man-chao, SONG Zhen-qi, WANG An, YANG Han-hong, QI He-gang, GUO Zhi-gang1-9,132Research on rock pressure behaviour of primary mining face in Wanbei Qianyingzi coal mineYU Yuan-lin10-133Study on law of rock pressure and control technology of surrounding rock in fully mechanized coal mining face in Xiaojiawa coal mineZHANG Xiao-dong, WANG Lei, REN Xu14-194Study on controlling effect of gravity sliding structure on coal and gas outburstXUE Bing19-215Technical study on power monitoring and anti-tripping systemJIA Li-wei22-246Study on gas drainage technology of coal seam with low permeabilityGU Pan25-277Field test study on high pressure directional hydraulic fracturing of hard roofLi Hong-ping, JIA Bing-bing, WANG Tao27-298Study on law of rock burst in irregular island mining faceGU Yu, ZHANG Chao30-339Design of automatic drainage system in coal mineGUO Min33-3510Analysis of coal seam character and coal characters of Fangshan-Baisha mining Area in Yuzhou city Henan ProvinceZHANG Xian, MA Ling, CHNE Qian-Qian, LI Feng36-3911Exploration of drainage radius of ZWY-270/355-G gas drainage pump in Cuncaota No.2 Coal MineZHANG Xiao-xu39-4312Effect analysis of deep borehole with large diameter for prevention of rock burst and pressure reliefSHI Wei-dong43-4513Cause analysis of shaft deformation in coal mine of Zhangshuanglou coal mineLIU Huan-xin46-4814Mechanics analysis on Fracture of track support in coal mineHAN Yong-jun49-5115Discussion on landfill of urban construction waste by using the abandoned mine roadwayYuan zhao-li51-5316Discussion on the application of fault maintenance technology of electromechanical equipment in coal mineSONG Chang-jiang53-5517Study on combustion and chemical Examination of coalQIAO Xiao-jie55-5818Study on prevention of rock burst in zone of irregular high grade coal pillar in steep inclined thick coal seamMA Hong-tao59-6119Water jet deslagging technology of ZQSJ-140/4.3 drilling machineHE Gang, LI Bing62-6320Successful application of single index method in identification of coal and gas outburstHAN Jian-she, LIU Jun, HUANG Yuan-le, YOU Hai-jun64-67 