1Breakage mechanism of roof strata above widespread mined-out area with roadway mining method and feasibility analysis of upward miningJIANG Yao-dong, YANG Ying-ming, MA Zhen-qian, LI Yan-wei801-8072Stress and energy criterion of the roadway destruction subjected to disturbance type rock burst and its practiceGAO Ming-shi, ZHAO Yi-chao, WEN Ying-yuan, CHENG Zhi-chao, QUAN Xiu-cai808-8143Analysis of surrounding rock creep hesitation effect of soft rock roadwayXUE Wei-pei, YAO Zhi-shu, DONG Ji-hua, JING Wei, HAO Peng-wei, JING Lai-wang, DONG Hai-long815-8214A new geometric model for non-linear flow in rough-walled fractures based on the cubic lawZHU Hong-guang, YI Cheng, XIE He-ping, XIE Yong-lan, ZHOU Jia-jie, WU Kai-bo822-8285Damage effect of granite's mechanical properties and parameters under the action of acidic solutionsMIAO Sheng-jun, CAI Mei-feng, JI Dong, GUO Qi-feng829-8356Experimental study on mechanical properties of saline frozen silty sandXU Xiang-tian, BAI Rui-qiang, LAI Yuan-ming, HU Kai836-8427Strength test on frozen cracked red sandstone combined with iceLIU Bo, LIU Nian, LI Dong-yang, WANG Shuai, LIU Ying-chao843-8498Unified formula for average temperature of frozen soil wall by row-piped freezingHU Xiang-dong, GUO Xiao-dong850-8579Notched-borehole cut blasting study by the method of dynamic causticsYUE Zhong-wen, QIU Peng, WANG Xu, SONG Yao, YU Qiang858-86310Adsorption kinetics of oxygen-bearing coalbed methane on carbon molecular sievesLIU Ying-shu, ZHANG Er-lin, YANG Xiong, LI Yong-ling864-87011Experiment study on CBM hydrates formation in tubular reactor stuff with porous mediumLI Wen-tao, GUO Bo-ting, ZHAO Jian-zhong871-87512Microscopic mechanism of NH3 on chain of methane explosionLUO Zhen-min, KANG Kai, REN Jun-ying876-88313Characteristics of flame propagation velocity of gas explosion in duct based on image processingNIE Bai-sheng, YANG Long-long, MENG Jun-qing, HE Xue-qiu884-89114Experimental study on wind speed distribution of the straight roadway and sudden enlarged sections based on LDALIU Jian, SONG Ying, LI Xue-bing, BAI Chong-guo, DENG Li-jun, WU Gang892-89815Numerical simulation of electrical resistance tomography method and magnetic method in detecting coal firesSONG Wu-jun, WANG Yan-ming, SHAO Zhen-lu899-90816An analytic model of wellbore stability for coal drilling base on limit equilibrium methodZHAO Xin-bo, YANG Xiu-juan, YAN Xiang-zhen, ZHANG Li-song, LIU Yu-meng909-91617Motion of incipient sedimental coal fines in coal seam fractures at single phase water flow stageMA Fei-ying, LIU Quan-wen, WANG Lin, LIU Da-wei, CHEN Zhen-ya, WEN Fa-wang917-92018Study on gas production and water production characteristics of CBM vertical wells under multi period tectonic movement of un-development fault in central south Qinshui BasinNI Xiao-ming, YANG Yan-hui, WANG Yan-bin, YE Jian-ping921-93019Numerical simulation on non-Darcy seepage of CBM by means of 3D reconstruction based on computed tomographyWANG Gang, YANG Xin-xiang, ZHANG Xiao-qiang, WU Meng-meng, LI Wen-xin931-94020Pore structure and its influence on gas mass transfer of low rank coal in Eastern Junggar Basin, XinjiangLUO Lei, TANG Da-zhen, TAO Shu, XU Hao, LI Song, MENG Yan-jun941-947 