1Regional failure mechanism of main roof and zonal method for ground control in kilometer-deep longwall panel with large face lengthWANG Jiachen, WANG Zhaohui, TANG Yuesong, SUN Wenchao, FENG Yungui3615-36272Analysis method of mining seepage fieldZHANG Jianmin, LI Quansheng, CAO Zhiguo, WEN Jianzhong, CHI Mingbo, DU Wenfeng, MA Zhenglong, YANG Yingming, GUO Junting, ZHAO Huiguo3628-36453Research on stope equivalent hole model and rotation law of principal stressLIU Hongtao, CHEN Zihan, GUO Xiaofei, HAN Zijun, LIU Qinyu, HAN Zhou, ZHANG Hongkai3646-36584Physical index and data fusion-driven method for coal burst prediction in time sequenceCAO Anye, LIU Yaoqi, YANG Xu, LI Sen, WANG Changbin, BAI Xianxi, LIU Yapeng3659-36735Field survey on the evolution of main ground cracks under condition of forced hard roof caving in mining ultra-thick coal seams under shallow overburdenWANG Pengfei, NIU Yifan, CHEN Kehang, ZHANG Jianli, GAO Mengnan, YU Yang3674-36876A new peak dilation angle model for rock joints considering different contribution proportions of actual contact joint asperities to shear strengthBAN Liren, HOU Yuhang, DU Weisheng, YU Jin, QI Chengzhi, SHAN Renliang3688-36997Mechanical properties of sandstone and prediction model of shear deformation band under true triaxial unloading conditionsWANG Ze, LI Wenpu, FENG Guorui, DU Jiahui, HAO Ruiqing3700-37128Joint ground and underground gas extraction mode and its key technology for outburst coal seam groupZHANG Yongjiang, ZOU Quanle, YANG Huiming, CHEN Zihan, CAO Jianjun, CHENG Zhiheng3713-37309Development and application of simulation experimental system for impact dynamic effect and disaster-causing characteristics of coal and gas outburstYANG Xuelin, WEN Guangcai, SUN Haitao, CAO Jie, WANG Bo, DAI Linchao, LU Jun3731-374910Position characteristics of horizontal-directional long boreholes in overlying strata and drainage mechanism of pressure-relief gas in longwall miningGUO Mingjie, GUO Wenbing, ZHAO Gaobo, YUAN Ruifu, WANG Yusheng, BAI Erhu3750-376511Wettability and mechanism of AEO3 for lignite wettingHAN Fangwei, HU Fuhong, XI Zhilin, ZHAO Yue, LIU Mei3766-377512Derivative mine dynamic water inrush mode of skylight leakage and its evaluation and control technology systemZENG Yifan, MENG Shihao, WU Qiang, PANG Zhenzhong, PANG Kai, YANG Guoqing, MEI Aoshuang, LI Qiang, WANG Sitong3776-378813Analysis on the occurrence characteristics and resource potential of tar-rich coal in Santanghu and Turpan-Hami BasinsDONG Zhen, ZHANG Mengyuan, CHEN Yanpeng, FENG Shuo, XUE Junjie, CHEN Hao, TIAN Jijun, CHEN Shanshan, ZHAO Yufeng, WANG Xinggang, JIAO Lixin, LI Bin3789-380514Recognition of adsorption phase density,adsorption model,and adsorption mechanism of CH4 in coalLIU Huihu, FAN Zhengpu, XU Hongjie, LIU Junlin, LI Nana3806-381715Study of non-uniform potential well distribution of coal and its effect on methane adsorption/desorptionWANG Jinxin, ZHOU Dong, FENG Xuejian, WANG Menglu, FENG Zengchao3818-383016Hydrogeochemical characteristics of Ordovician karst water in North China coalfield and its indicative significance for geothermal energyZHANG Jie, CHEN Luwang, HOU Xiaowei, ZHANG Miao, HU Yongsheng3831-384417Study on fracturing monitoring and expansion law of underground gasification coal based on different gasification channel typesSU Faqiang, DENG Qichao, WU Junbo, ZHANG Tao, DAI Mengjia, HE Xiaolong, YANG Junnan, YU Yihe3845-385818Digital twin of mine ecological environment:Connotation,framework and key technologiesLI Quansheng, LIU Juqing, LI Jun, ZHANG Chengye, GUO Junting, WANG Xingjuan, RAN Wenyan3859-387319Effect of electric field on the adsorption characteristics of heavy metal ions on kaolinite surfaceYAN Ke, CHAI Zhaoyun, LI Tianyu, YANG Zeqian, XIN Zipeng, SUN Haocheng3874-388420Preparation and air filtration performance of PLA-based MOFilterLI Xinyu, ZHU Guiying, WANG Cunmin, ZHU Jintuo, XU Huan, HE Xinjian3885-3894 