1Effect of mining thickness on abutment pressure of working faceXIE Guang-xiang, WANG Lei361-3632Surrounding rock deformation properties and determination of support parameters of soft rock roadway in deep mineWANG Qi-sheng, LI Xi-bing, LI Di-yuan364-3673Surface movement predicting problems of deep strip pillar miningGUO Wen-bing368-3724Simulation of backfill compaction character by particle flow codeLI Xing-shang, XU Jia-lin, ZHU Wei-bing, ZHUANG De-lin373-3775Generating and destabilization evolutionary of granular arch structure of upper immediate roofLI Hong-tao, LIU Chang-you, WANG Li-quan378-3816Roof localized damage and deformation characteristics based on the overburden rockmass in mined out areaWEI Xiao-jun, ZOU Lei, LAI Xing-ping, L(U) Zhao-hai, CHAI Xin382-3867Application of the contact element method in analyzing the separation and deformation of the stratified roofZHNAG Bai-sheng, YAN Yong-gan, KANG Li-xun387-3908A wavelet method to fix the defect position of anchorage systemCHEN Jian-gong, ZHANG Yong-xing391-3949Bayes discriminant analysis method of rock-mass quality classificationWEN Chang-ping395-39910Damage mechanism and vibration effects in tunnel blastingYANG Xiao-lin, HOU Ai-jun, LIANG Wei-min, YU Yong-qiang400-40411Genetic relationship of Ge-coal deposit in Shengli coalfield and micro-environment of coal-forming swampDU Gang, XIA Bin, QIN Sheng-li, TANG Da-zhen, HUANG Wen-hui, Wan Huan405-40912Overpressure attenuation of shock wave during gas explosionQU Zhi-ming, ZHOU Xin-quan, WANG Hai-yan, MA Hong-liang410-41413Application of GM(1,1)and line regression for predicting amount of mine gas emission in coal mineSHI Shi-liang, WU Ai-you415-41814Environmental impact of coal mining subsided water area in Huainan mining areaXU Liang-ji, YAN Jia-ping, GAO Yong-mei419-42215Integrate risk assessment of the heavy metal contamination in key regions of mining area in HuainanLI Hai-xia, HU Zhen-qi, LI Ning, FAN Chun-yan, LIANG Shuang423-42616Application of fractal theory in the ecosystem stability assessment in mining areaWANG Guang-cheng, YAN Xu-qian427-43017Packing mode and optimization of flotation columnLI Yan-feng, ZHANG Min, LIU Jiong-tian431-43418Ultrasonic and microwave co-enhanced oxidative desulfurization of organic sulphur from coalMI Jie, REN Jun, WANG Jian-cheng, BAO Wei-ren, XIE Ke-chang435-43819Effect of wet oxidized modification on oxygen-containing functional groups of activated carbon fibersZHANG Deng-feng, LU Wen, Wang Pan-pan, YANG Li-li, Li Chen-xi, ZENG Xiang-dong439-44320Numerical simulation of application of super-shear technology in enhancing CWM's stabilityYE Shen-zhu, ZHOU Dong, ZHANG Yu-zhong444-448 