1Goaf water bin filling design and surrounding rock control technology in gob-side entry driving with narrow coal pillarFU Zhong-hua, WU Yu, ZHANG Yan, LIN Ji-kai, HAO YangDesign Technology1-72Width to height ratio effect and size optimization of coal pillar in fully-mechanized caving mining faceCHEN Bing, GAO Liang, DU Zheng-huDesign Technology8-123Design of gangue reentry for backfilling mining in fully mechanized mining face of medium-thick seamGAO FengDesign Technology13-164System design of intelligent fully mechanized working face in thin coal seam of Sihe Coal MineSUN Jin-lu, GAO Gui-jun, JU Lin-tao, SHI San-boDesign Technology17-215Liquid level adjusting mechanism of multi-cell flotation machineLI Hong-qiDesign Technology22-256Application of open PHC short pipe pile in sand foundationDING Xiao-weiDesign Technology26-307Research and application of pumping pillar support for large section abandoned roadways in Shendong mine areaYANG Jun-caiConstruction Technology31-378Grouting reinforcement for advance pre-excavated roadway of working face to cross fault groupWANG Fu-hai, YANG Yong-gang, YANG Zhang-jie, CHEN Kang, WANG Qing-niuConstruction Technology38-429Main controlling factors of surrounding rock stability structure for gob-side entry driving in thick coal seamZHANG Jing-min, MENG Fan-linConstruction Technology43-4810Surrounding rock failure law and control of gob-side entry driving in fully mechanized top coal caving faceGAO Jing-angConstruction Technology49-5611Active advance support technology and Practice of"Regional differentiation"WANG Yi-qing, MA Shou-long, YAO Qiang-ling, FAN Yu-xin, Liu Zhi-chaoConstruction Technology57-6112Experimental study on directional drilling technology of high spiral composite slag discharge in broken soft coal seamZHANG Hong-jie, ZHANG Jie, YANG Shuai, WANG Chang-wei, ZHANG Ya-zhou, WANG Jian-qiang, YANG Zhi-jieConstruction Technology62-6713Rockburst prevention technology of directional long drilling segmented hydraulic fracturing in roofLYU Yu-lei, ZHENG Kai-ge, BAI Jun-jieProduction Technology68-7414Staged fracturing technology for rock burst control with surface horizontal wells in Mengcun Coal MineNIU Hong-bo, MA Xiao-hui, GUO Yan-heng, YANG Gang, LIU Ji-shengProduction Technology75-7915Floor pressure relief law and gas control technology in upper protective seam miningGUO Jian-hangProduction Technology80-8516Microseismic response characteristics of semi-island working face under extra-thick hard roofWANG Ze-dong, LIU Guo-lei, TIAN Li-hua, CUI Yu, ZHENG Yu-chao, LIANG Wen-zhao, ZHANG Xin-rongProduction Technology86-8917Upgrading and transformation of remote intelligent monitoring system of unattended substation in coal mineHAN Jian-pingProduction Technology90-9418Practice of trusteeship operation mode in Yicheng Coal Preparation PlantLU Zhi-qiangProduction Technology95-9819Surrounding rock stability control technology of open-cutting entry retaining near goafMA Zi-min, WANG Yan-jun, WANG Hai-jie, SU Yi, MA LeiResearch and Discussion99-10320Research and application of mining pressure law in coal-rock drift retained by roof cutting in thin coal seamZHANG Lei, LI Wei-dong, WANG Yi-long, LU Lian-xi, LI Yong-yuan, GAO Jian-xunResearch and Discussion104-108 