1"Three plies in top coal" theory and its application in top coal caving mining for ultra-thick coal seamsWANG Jin-hua, HUANG Zhi-zeng, YU Lei809-8162Top-coal caving structure and technology for increasing recovery rate at extra-thick hard coal seamPANG Yi-hui, WANG Guo-fa817-8243Surrounding rock control mechanism and its application of gob-side driving entry in extra thick coal seam825-8324Elasto-plastic solution of deformation in circular soft rock tunnel based on double yield surface modelLI Hao, BAI Hai-bo, WU Jian-jun, MENG Qing-bin, WANG Ying-chao, ZHAO Hui-ming, HUANG Wei-xing, MA Kai, ZHENG Lei833-8415Analysis of the influence of interlayer rock on ascending mining under special conditionsWU Bao-yang, DENG Zhi-gang, FENG Yu-feng, LI Feng842-8486Calculation method and main factor sensitivity analysis of inclined coal floor damage depthLIU Wei-tao, MU Dian-rui, YANG Li, LI Liu-yang, SHI Chen-hao849-8597Quantitative analysis of crack expansion in specimens of coal having a single pre-existing hole860-8708Experimental study on compressive strength and fracture characteristics of sandstone containing double circular cavitiesHAN Guan-sheng, JING Hong-wen, SU Hai-jian, ZHU Tan-tan, DU Ming-rui, XIONG Fei, WU Jiang-yu871-8789Influence of intermediate principal stress on dilation and strength characteristics of sandstone879-88510Strength and fracture behaviors of sandstone samples containing intersect fissures under uniaxial compressionXIONG Fei, JING Hong-wen, SU Hai-jian, DU Ming-rui, YIN Qian, HAN Guan-sheng886-89511An elastic-plastic-soften constitutive model of coal considering its nonlinear elastic mechanical behavior896-90112Experimental study on hydraulic blasting stress wave propagation and coal broken mechanismCAI Yong-le, FU Hong-wei902-90713Research and application of hard rock deep-hole advance blasting in comprehensive roadway excavationWANG Hai-bo, XU Xuan, ZONG Qi, XU Shao-ming, XU Ying908-91514Experimental study on permeability parameter evolution of pressure-bear broken coalYU Ming-gao, CHAO Jiang-kun, CHU Ting-xiang, TENG Fei, LI Pin916-92215Coal particle gas adsorption mathematical model and numerical solution under variable pressuresQIN Yue-ping, WANG Jian, ZHENG Yun, TONG Xing, LIU Peng, QI Yi-pei923-92816Simulation study of ventilation system disaster evolution in coal and gas outburst mineLI Zong-xiang, WANG Tian-ming, WANG Shuang-yong, WANG Ya-di929-93417Characteristics and critical parameters of coal spontaneous combustion at low temperature stage based on CPT method935-94118Mechanochemistry mechanism of gas generation during coal deformationDONG Yi-jing, HAN Yu-zhen, HOU Quan-lin, WANG Jin942-94919Discussion on methods for selected areas evaluation of coalbed methane:A case study of southern Junggar BasinWANG An-min, CAO Dai-yong, WEI Ying-chun950-95820Molecular simulation study on the adsorption behaviors of methane in slit-like clay mineral poreXIONG Jian, LIU Xiang-jun, LIANG Li-xi959-968 