1Research on deformation law of surface movement in high intensity mining based on multi information fusionXue Bo, Wang Meng, Zhang Xueliang, Gao YunzengQuestion Discussion1-72Research on mechanical characteristics of roof and stability mechanism of surrounding rock in gob-side entry retainingLi JianghuaQuestion Discussion8-143Study on position of open-off cut of upper coal seam working face in close range coal seamsGuo Yaosheng, Su Lei, Ma YunfengQuestion Discussion15-204Research on development law and weakening effect of two zones in multi-coal seam miningXie Jian, Wang Daokun, Wang Tongming, Liu MingzhangQuestion Discussion21-27,325Feedback control of dense-medium separation suspension output based on event-triggered protocolBai Long, Song Wanjun, Jiang Hanyuan, Li Xiaofeng, Gao JingwenQuestion Discussion28-326Coal quality characteristics and clean utilization direction of minable coal seams in Guankou mine field of Xinmi CoalfieldGao Ming, Chen Qianqian, Shi HanQuestion Discussion33-377Research on automatic tensioning system of mining scraper conveyor chainFeng JiangtaoQuestion Discussion38-40,458Design of fast loading/unloading and four-crawler steering system for mining unit support transporterYu Bin, Li Zongjie, Shi ShuaiQuestion Discussion41-459Characterization of tectonic coal pore structure with different destruction types and its influence on gas desorption and diffusionWu Yuliang, Ma Junwei, Zhang Wenliang, Zhang PengxinQuestion Discussion46-52,5710Study on influence law of double tooth cutting broken coal and rock parameters on mechanical properties of picksXu Panpan, Zhang Lei, Liu Benlong, Hao Zhaoyu, Xu Binbin, Li HongshengQuestion Discussion53-5711Research on reasonable width of coal pillars for protecting roadways in irregular island fully-mechanized caving faceLi Ning, Bi Zhiqiang, Zhao YanfangExperimental Study58-6712Research on reasonable width retention of coal pillars for new excavation open-off cut of isolated working face below goafDun Huidong, Fang Xiaozhe, Liu Zhaosheng, Niu Liguo, Li Wei, Zhang ShihuaExperimental Study68-75,8313Research on deformation characteristics of surrounding rock and pre-tightening force design of bolt supporting in"three soft"coal seam roadwaysGe Kai, Shen Chengyang, Feng Haiming, Wang Xufeng, Liu ChangchengExperimental Study76-8314Study on rock pressure behavior law and numerical simulation under condition of regenerated roofTao HanghangExperimental Study84-90,9615Research on performance of inorganic two fluid reinforcement materials for coal mining working faceMao Zhe, Zhou Yue, Feng Bo, Wang Jiale, Zhao Kun, Lu ChangjieExperimental Study91-9616Numerical simulation of mining-induced fracture evolution and seepage movement in coal seam floor above confined aquiferXing ShengshengExperimental Study97-101,10717Research on prediction of surface deformation during the mining of No.4 coal seam in Fujiayan Coal MineQiao JianweiExperimental Study102-10718Research on water conductivity and influencing factors of collapse columns in Gaohe Coal MineLi Feng, Wei Junxian, Xu Jinpeng, Zheng Yinan, Peng Dongdong, Li PuCoal Safety108-114,12319Research and application of directional hydraulic fracturing through layers for preventing and controlling coal and gas outburstsFan HongbinCoal Safety115-12320Research and application of hazard assessment of high-intensity mining face based on entropy weightBi Keke, Tian Peng, Wang Meng, Zhang Xueliang, Gao YunzengCoal Safety124-129,134 