1Impact analysis on mining status and ecological environment in open-pit coal mineSONG Ziling, FAN Junfu, WANG Laigui, WEI Chunqi, WANG Jianguo, JI Yushi1-4,92Research on dump construction and development of vertical mining to horizontal mining in inclined coal seam open-pit mineFU Ensan, BAI Runcai, LIU Guangwei5-93Study on dump slope seepage with fracture and discontinuous deformation couple stability controlWANG Zhenwei, LIU Xiaoli, LV Xiangfeng, WANG Jun, LI Wei10-134Research on stability influence factors of underground goaf in Open-pit Coal MineDING Xinpin, WANG Zhenwei, WANG Jun, LI Wei, CAO Fangzhi14-17,215Stability analysis and numerical simulation of slope angle in Anjialing Open-pit MineWANG Zhidong, QIAO Shupei, WANG Zejiang18-216Automobile and electric iron combined technology applying to water bearing alluvium mining schemeWANG Xiaoguang, ZHAO Yingtuo22-247Research on high and steep slope deformation failure mechanism and stability in open-pit mineXIAO Ping, LI Huifa25-298Research on dump slope monitoring and deformation affected by underground miningLI Wei, ZHANG Zhongchao, MA Ming30-339Application research of slope stability theory analysis in Puyang coal mineZHANG Zhun34-37,4110Optimization study on frozen soil layer blasting parameters in Yimin Open-pit MineLI Ang, LI Zhiqiang38-4111Analysis on hydrogeological condition of water source area in Zhungeer mining areaYANG Yong42-4412Numerical simulation analysis of high bench blasting charge structure in Open-pit Coal MineHOU Chengheng45-4813Technology innovation of dumping plough and height increasing on complex basementLUO Wei, YIN Zhengwen49-52,5614Current situation and analysis of lignite upgrading technologyWANG Huanlin53-5615Cause analysis of unstable loading calorific value in Zhunge'er Coal Preparation PlantLIU Xiao57-6016Application of oil analysis spectrometer in mining enterprisesLU Xiaojing61-64,6817Measurement management system construction based on digital production modeLU Rao, WANG Ping65-6818Analysis of 395B shovel DC-BUS overvoltage or undervoltage faultXU Zhiping69-711937E electric locomotive converter damage causes and improvement measuresLIU Xin72-73,7720Analysis and process of 3D laser scanning data in Open-pit Mine goafLI Weihong, HU Guoxin, LIU Liu, LI Jingtao74-77 