1Key technologies and equipment for intelligent fully-mechanized top-coal caving of hard coal with super large mining heightHAN Hui-jun, ZENG Ming-sheng, YAN Yue, LI Shen-longDesign Technology1-52Application of staged gob-side entry retaining with high water material filling in Daning Coal MineHAN Jun-xiao, MA Jin-min, SHI Jin-song, CHEN YongDesign Technology6-113Discussion on steel structure hoisting headframe systemLIU Yan-dong, WANG Zhi-jie, LIU Bing, ZHANG Zhen-yuDesign Technology12-164Issues on road lighting grounding system of coal mine industrial siteXU TaoDesign Technology17-205Water saving potential of coal-based energy industry in Ningdong baseWANG LeiDesign Technology21-276Rapid surrounding rock control of roof cutting roadway retaining under high ground stressLI Ai-jun, WANG YanConstruction Technology28-327Roof cutting gob-side entry retaining in high cutting face under complex stress disturbanceWANG Wen-lin, MA SaiConstruction Technology33-378Hydraulic fracturing roof cutting for roadway protection in contiguous coal seamsLIU Ai-qingConstruction Technology38-429Application of comprehensive geophysical prospecting in advance roadway geological forecast in Dawan Coal MineWU Chao-fan, QIU Zhan-lin, LU Tuo, LIANG Wen-quanConstruction Technology43-4710Precursor characteristics of rock burst in near-vertical coal seam based on geoacoustic monitoringLIU Kun-lun, YAN Rui-bingProduction Technology48-5111Roof failure mechanism and the control technology of fully mechanized mining face passing through faultWEI Qing-liang, LI Yan-bin, GU Pan, ZHANG BoProduction Technology52-5712Study on roof weakening technology of shaped charge presplit blasting in Changcun Coal MineYANG Ze-jinProduction Technology58-6113Curtain grouting for water-blocking in working face roof water bursting adjacent to flooded goafZHANG Dong-yingProduction Technology62-6614Assessment method of floor grouting effect and water bursting risk applied in Zhaogu No.2 MineMU Song-li, LI Peng-fei, GENG Hao-bo, HAN Jiu-fanProduction Technology67-7215Floor water exploration and drainage technology and engineering practice using directional drillingDOU Xu-qianProduction Technology73-7716Asymmetric deformation mechanism and control of high geostress soft rock dip entryWANG Tian-lu, WANG Wei-guo, LIU Xiao, LIU ShuaiResearch and Discussion78-8317Distribution law of stress and displacement of surrounding rock in shallow-buried weak-cemented soft rock roadway and its support practiceFAN Yu-qing, LIU Yu-cheng, ZHAO Ming-zhou, WEN Liang-xia, WANG Chang-qiResearch and Discussion84-9118Characteristics of hole circle coal body deformation and cuttings generating in deep soft coal seam drillingHUANG Chang-guoResearch and Discussion92-9619Pressure relief and outburst prevention technology of hydraulic punching in geostress-oriented coal roadwayLI Sheng-zhouResearch and Discussion97-10220Processing method for mine wire rope damage signal based on improved particle swarm optimization wavelet thresholdTIAN Jie, SONG ShanResearch and Discussion103-107 