1Development countermeasures and current situation of coal mine fire prevention & extinguishing in ChinaLiang Yuntao, Hou Xianjun, Luo Haizhu, Tian Fuchao, Yu GuishengScience and Technology Achievements of Youth Talen1-6,132Study progress of permeability dynamic variation in drainage process of coalbed methane wellWu Caifang, Zhang XiaoyangScience and Technology Achievements of Youth Talen7-133Petrophysics and fluid properties characterizations of coalbed methane reservoir by using NMR relaxation time analysisYao Yanbin, Liu DamengScience and Technology Achievements of Youth Talen14-224Study review on microstructure and adsorption heterogeneity of shale reservoirChen ShangbinScience and Technology Achievements of Youth Talen23-325Analysis on mechanical behavior and simulation of roof fractal pre-splitting blasting in shallow depth coal mining faceZuo Jianping, Sun Yunjiang, Jiang Guanghui, Wang Jintao, Chen YanScience and Technology Achievements of Youth Talen33-386Mechanism and application of excavation, support and bolting continuous parallel operation in roadwayWu Yongzheng, Wu Jianxing, Wang FengScience and Technology Achievements of Youth Talen39-447Sloughing mechanism and control of coal wall in high cutting fully-mechanized top coal caving mining face in ultra thick seamLi Zhenhua, Wang ShenScience and Technology Achievements of Youth Talen45-518Engineering mechanics behavior and surrounding rock control of mine loose coal and rock roadway with high pressure gasYu Weijian, Zhang Jian, Yuan Zhigang, Wang PingScience and Technology Achievements of Youth Talen52-599Study on complex roof support technology of mining gateway in deep mineChang JucaiScience and Technology Achievements of Youth Talen60-63,7710Practices and monitoring method of static loading dominant type mine strata pressure bump in shallow depth minePan Junfeng, Wang Shuwen, Liu Shaohong, Feng Meihua, Qin ZihanScience and Technology Achievements of Youth Talen64-70,9811New progress on monitoring and early warning technology of mine strata pressure bumpLiu JinhaiScience and Technology Achievements of Youth Talen71-7712Monitoring and analysis of rock burst process during steeply inclined and ultra thick seam miningLan Hang, Du TaotaoScience and Technology Achievements of Youth Talen78-8213Study on geologic dynamic environment of mine strata pressure bumpHan JunScience and Technology Achievements of Youth Talen83-88,10514Technology and application of overlong high cutting fully-mechanized coal mining face passed through overlarge drop faultYang Ke, Wang Zhigen, Hua Xinzhu, Zhu Ruojun, Li ZhihuaScience and Technology Achievements of Youth Talen89-93,11615Cross side unloading matched technology and application to high cutting fully mechanized top coal caving mining faceLi MingzhongScience and Technology Achievements of Youth Talen94-9816Study on influence of liquid nitrogen infiltration to saturated water coal fracture expandedZhang Chunhui, Guo Xiaokang, Li Hewan, Zhao Na, Wang LaiguiScience and Technology Achievements of Youth Talen99-10517Experiment study on diffusion features of gassy coal under negative pressure environmentChen Xiangjun, Duan Zhengpeng, Liu Yang, Wang PengScience and Technology Achievements of Youth Talen106-110,13318Physical properties and gas outburst disaster induced-mechanism in coal seams underneath the magmatic sill coverWang Liang, Liu FeiScience and Technology Achievements of Youth Talen111-11619Real outburst danger and discrimination experiment of gassy coal seamYuan RuifuScience and Technology Achievements of Youth Talen117-122,19920Study on pore structure and loaded meso deformation feature law of gassy coal massNie Baisheng, Yang Longlong, Li Mogeng, Liu Shuai, Zhang JiabinScience and Technology Achievements of Youth Talen123-126 