1EditorialLiang Yuan1-22Theory and practice of integrated coal production and gas extractionLiang Yuan3-113An integrated approach to study of strata behaviour and gas flow dynamics and its applicationHua Guo, Liang Yuan12-214A coupled DEM and LBM model for simulation of outbursts of coal and gasSheng Xue, Liang Yuan, Junfeng Wang, Yucang Wang, Jun Xie22-295Characteristics and applications of gas desorption with excavation disturbances in coal miningJiachen Wang, Renlun Wu, Peng Zhang30-376Experimental research on overlying strata movement and fracture evolution in pillarless stress-relief miningJunhua Xue, Hanpeng Wang, Wei Zhou, Bo Ren, Changrui Duan, Dongsheng Deng38-457Approach to increasing the quality of pressure-relieved gas drained from protected coal seam using surface borehole and its industrial applicationYingke Liu, Fubao Zhou, Jianlong Wang, Jun Liu46-518Definition, theory, methods, and applications of the safe and efficient simultaneous extraction of coal and gasYuanping Cheng, Liang Wang, Hongyong Liu, Shengli Kong, Quanlin Yang, Jintuo Zhu, Qingyi Tu52-659Patterns and security technologies for co-extraction of coal and gas in deep mines without entry pillarsNong Zhang, Fei Xue, Nianchao Zhang, Xiaowei Feng66-7510Development and application of an efficient gas extraction model for low-rank high-gas coal bedsBaiquan Lin, He Li, Desheng Yuan, Ziwen Li76-8311Gas drainage from different mine areas: optimal placement of drainage systems for deep coal seams with high gas emissionsPing Lu, Ping Li, Jian Chen, Chuijin Zhang, Junhua Xue, Tao Yu84-9012Experimental investigation into stress-relief characteristics with upward large height and upward mining under hard thick roofKe Yang, Xiang He, Litong Dou, Wenjun Liu, Li Sun, Haisong Ye91-96