1Construction and application of transparent geological assurance system in Shendong mining area based on drilling and geophysical dataGAO Ping, GUO ZhenqiaoDesign Technology1-92Key technologies for underground coupled coordination of multi-systems in Lijiahao Coal MineSHI Zhihong, GUO Biao, CHEN Peng, MENG Jintao, QIAO Xu, LIANG XirongDesign Technology10-173Control logic of smart microgrids in coal minesFAN HengchuanDesign Technology18-234Design and practice of high-salinity and high-hardness mine water treatment processXUE Chunlei, ZHANG Yuanye, GAO Chunyan, WANG Dong, WANG ShengyuanDesign Technology24-295Application of"BIM+"technology in coal construction projectsLIU Zhijiang, WU Bo, HAO Shuang, ZHANG Lei, LI Xihang, ZHANG LijuanDesign Technology30-356Exploration and practice in the construction of green,intelligent and high-efficiency large-scale coking coal preparation plantsCUI Junqiang, WU Shengxing, WANG Feng, YANG RuifengDesign Technology36-417Nonlinear numerical analysis of crumb rubber concrete silo structureYANG GuangDesign Technology42-488Staged hydraulic fracturing with directional long borehole for fully mechanized mining face in a shallow coal seam under hard roofREN Jianxi, YAN Wei, XU Baojun, MIAO Yanping, JIAO Jinzhao, SUN Chengwei, WANG KeConstruction Technology49-579Surrounding rock control technology for fully mechanized top-coal caving entries in residual thick coal seamSHAO Chunrui, JI Tingxiu, SUN Jianning, ZHAO BaoyouConstruction Technology58-6610Layout of special gas control roadway in high gas mine and the collaborative control technology of surrounding rockFAN Hailiang, LI MingConstruction Technology67-7511Key technologies of intelligent excavation for coal roadways in coal and gas outburst coal minesWANG Shengzhi, MA Chenshe, HU ChengjunConstruction Technology76-8312Stability monitoring of soil nailing in deep seated large coal bunker foundation pitKUANG Lianfei, QIN Yeshuang, LYU Ya, SHAO Yu, FU YajunConstruction Technology84-9013Mechanism and control strategies of floor heave in roadways under repeated mining disturbances in fully mechanized top-coal caving miningYANG Zhen, SUN Xingguang, ZHANG Heng, YANG Kunlin, YANG XiaoruProduction Technology91-9914Infiltration law and fire prevention and extinguishing effect of composite long-acting flame retardant liquid in coal bodyZHANG Likui, SHI Xin, LI Wenlin, LIU LongfeiProduction Technology100-10815Comprehensive technology of roof cutting roadway protection and gas extraction based on staged fracturing with directional drillingCHEN Liang, YU Hongyang, BAI Yajun, WANG Dongwei, QIN Ruichen, WANG DongpanProduction Technology109-11616Determining the effective extraction radius of coal seam drilling based on standard gas extraction quantityLI FeiProduction Technology117-12217Application of membrane bioreactor in treatment of coal mine domestic wastewaterXIE Nan, CHENG Jining, WANG Yongbiao, WANG XintongProduction Technology123-12818Research on multi-objective optimization method of TBM tunneling parameters based on intelligent integration algorithmSHEN Yuanwei, ZHU Hao, CAO Mengxuan, FENG Changru, ZHU Mengyuan, ZHANG ChaofanResearch and Discussion129-13719Gas extraction roadways layout based on evolution of overburden fracture field induced by miningXIE JunResearch and Discussion138-14520Combination optimization and verification of delay timing for column charges driven by coal-rock fragmentation efficiencyWANG Hao, LI Xianglong, HU Tao, LI Haoming, ZHOU Yu, WANG XiaopingResearch and Discussion146-155 