1Research of mining technology optimization in Biesikuduke Open-pit Coal MineSUN Xin1-3,72Optimization of 630E trucks electric wheel update scheme in Heidaigou Open-pit MineLI Haijun, MU Penghao4-73Optimization of reasonable working line length in Shengli Open-pit MineSU Haiyun, SUN Lei, HUANG Yuejun, XIAO Bing8-114Analysis on hydrogeology condition in Shenhua Baorixile Open-pit Coal MineXING Zhenguo, HUANG Yukai, HU Jinkui12-145Application of off-road wide dump truck in open-pit mineXU Shuangxi, LI Dejun15-176Research of volatile particulate concentration detection device based on membrane weighing methodWU Xufeng18-21,257Study on control blasting technology for electric railway transportation region in Fushun West Open - pit Coal MineLIU Tao, XING Zhen, LYU Yang22-258Application of electronic detonator under a complex environment in the blasting mining of iron ore mineCHEN Jian26-29,329Numerical simulation study on dam stability of the tailings dam in TangshanWANG Minghui, KANG Zhiqiang, LI Lei30-3210Study of reducing dielectric loss in Ha'erwusu Coal Preparation PlantYANG Weimin33-35,4211Research on improving the coal separation efficiency of coking coalLIU Jia, CUI Ting36-4212Research of high voltage power supply wire continuous monitoring technology in Anjialing Open-pit MineCHEN Jianping43-4613Comparison analysis of common driving mode of belt conveyorZHAO Qi47-4914Optimization of WK35 electric shovel hoist gear box maintenance technologyFENG Zhanzhong, YU Baoqing, LI Zhaoxuan, ZHANG Yujun50-51,5515Effect and preventive measures of solid pollutants on D475 bulldozer hydraulic systemREN Dongjie52-5516Cause analysis and solution of 630E mining truck electric wheel brush abnormal wearCHEN Hudong56-5917Handling of L2350 loader large arm relief failureDU Xiao60-63,6718Study on the measurement system of truck dispatching based on GPSGONG Chungang64-6719Application of 3Dmine mining software in open-pit mining planWANG Jianxin68-71,7420Crack welding repair technology in the torsion bar of L-1150 front loader lifting armZHANG Ning, HE Dong72-74 