1Practices on dynamic prevention and control of pressure bump in high stress zone of Sanhejian MineZHAO Yu-sheng1-42Bolt support technology for large cross sectional equipment remove gateway and applicationZHAO Jun5-73Gas emission law and control of gently inclined coal mining face with gateway retained for next sublevelLI Chen-wu, GU Wen-guang8-10,134Practices on combined mining with fully mechanized top coal caving and fully mechanized coal mining in Wuyang MineTANG Jun-hua, YANG Ji-xian11-135New development of coal injection technology for blast-furnace in Shijiazhuang Iron and Steel GroupFENG Jie, ZHENG Yi-rong, FU Cui-yan, ZHANG Su-qing, ZHAO Lei14-166Strata pressure behavior and support practices of crossing coal mining over mine soft rock roadway in Tongting MineXIE Hong-bin16-187Research and development on mine monitoring and control system connecting with gateway of internetHUA Gang, WANG Hong-yao19-21,258Application on double audio frequency technology to data transmission in underground mineLI Yang-ming, HAN Jiang-hong, JIN Hao22-259Practices on pilot probing technology with DC power three sources in Xingtai Mining AreaLIU Jin-feng26-2710Technical rebuilding of coarse slime recovery system in Taixi Coal Preparation PlantZHANG Qian28-2911Occurred mechanism and prevention countermeasures for rock outburst in deep mine roadwayLIU Chang-jiang, LU Hai-jun30-32,6712Test and research on relationship between seam gas features and vibration wave parametersLIU Sheng-dong, ZHAO Qiu-fang, ZHANG Ping-song, GUO Li-quan33-3613Research on safety mining boundary of coal mining above limestone with pressurized water in Gaokeng Mine FieldWEN Ji-ping, ZHANG Gan-ping, LI Yuan-qiu, QI Jing-sheng37-4014Electric control system rebuilding of mine AC hoist base on PLC technologyWANG Yu-zhong, YU Fa-shan, LIANG Chao40-4215Research on selectivity electric leakage protection system base on null sequence power directionGAO Yan, WANG Nian-bin, WANG Yan-wen43-45,4816New method to calculate running resistance of scrape conveyorZHANG Xue-rong46-4817Dynamic tendency and EME critical value of seam and rock in deep mining sectionGAO Ming-shi, DOU Lin-ming, ZHANG Nong, XU Xing-liang, ZHENG Bai-sheng49-5118Research on parameter optimization and application of bolt and steel mesh support technology for mine roadway driving along next goafXING Yu-zhang, YIN De-wei, WANG Xue-min52-54,8019Research on dissolved swelling and biological desulfurization of coalWANG De-qiang, QIAN Juan-juan55-5720Analysis on economical and technical factors effected to mine safety status in ChinaWANG Chong-xian58-61 