1Post-buckling behavior for roof strata in shallow seam longwall miningYANG Zhi-lin, YU Xue-yi337-3402Controlling pattern for dynamic stability of system "Roof-Support-Floor"WU Yong-ping341-3463Repetitive mining subsidence with thick soil layers and steep seamGAO Ming-zhong, YU Zhong-lin347-3524The improved Lippmann's translatory model of coal bumpsZHU Jie, JIANG Yao-dong, ZHAO Yi-xin, SUN Lei, QIN Wei, LI Yu-tao353-3575PFC2D model for mesostructure of inhomogeneous geomaterial based on digital image processingXU Wen-jie, HU Rui-lin, WANG Yan-ping358-3626Content and distribution of fluorine in rock, clay and water in fluorosis area Zhaotong, Yunnan ProvinceLUO Kun-li, LI Hui-jie, FENG Fu-jian, CHEN Tong-bin, XIONG Ming-hai, WANG Wei-zhong, LIAO Xiao-yong, LI Wei, WANG Li-hua363-3687Study on the characteristics of water-conducting in the coalfilelds of North ChinaYANG Wu-yang, WANG Wen-xiang, ZHI Jian-shui, XU Tong-feng, WANG Han-guo369-3728Analysis of blasting mechanism for deep rock tunneling and blasting parameters designWANG Han-jun, YANG Ren-shu, LI Qing373-3769Testing research of improving mine gas drainage under suction by controlling blasting to cause crackYU Yong-qiang, YANG Xiao-lin, LIANG Wei-min, WANG Jin-xing377-38110Forecast of the gas effused from the face in protective seamDAI Guang-long, WANG You-qing, ZHANG Chun-ru, LI Qing-ming, SHAO Guang-yin382-38511Numerical simulation of distribution regularities of dust concentration during the ventilation process of coal roadway drivingWANG Xiao-zhen, JIANG Zhon-gan, WANG Shan-wen, LIU Yi386-39012Predict gas emissing quantity of mining coal face with improved Grey Markov modelTAO Yun-qi, XU Jiang, LI Shu-chun391-39513Numerical simulation of gas concentration field in multi-source and multi-congruence goafLAN Ze-quan, ZHANG Guo-shu396-40114A model for enhanced coalbed methane and CO2 sequestration with multilateral wellsXI Chang-feng, WU Xiao-dong, WANG Xin-hai402-40615TOPSIS method for evaluation on mine ventilation systemWU Li-yun, YANG Yu-zhong, ZHANG Qiang407-41016Minerals in feed coal and their contribution to high-alumina fly ash in the Jungar Power PlantSHAO Long-yi, CHEN Jiang-feng, SHI Yu-zhen, LU Jing411-41517Adsorption properties of fly ash towards bivalent metal ionsZHOU Li-min, LIU Zhi-rong, HUANG Qun-wu416-41918Emission characteristics of chlorine in the process of coal and WP co-pyrolysising and exploring on its mechanismLI Zhen, LIU Ze-chang, ZHAO Ying, SHI Yu-miao, ZHAO Shi-hua420-42419Experimental study on electro-jet instability of coal water slurryZHENG Jie-qing, ZHANG Jun, LUO Ti-qian, Liu Xin-ai, PAN Yi425-42820Simulation of the milling process using a vertical roller millKUANG Ya-li, CHEN Qing-ru, A.J.Lynch, WANG Hai-feng, ZHANG Jun, LI Yun-hong, ZHUO Jin-wu429-432 