1Optimization transformation of flood ditch in Xiaolongtan coal mineLU Dingbo, SONG Jinghui, MAO Yongxiang1-32Application of end slope and steep slope control mining technology in Anjialing open-pit mineCHANG Yonggang4-63Delineation of south slope optimal boundary in road cleaning areaWANG Zhen, LUO Ke, YANG Hongliang7-8,114Optimization of mining boundary in Xieerta open-pit coal mineNING Dafang9-115Underground water control of Thar desert block Ⅱ open-pit mine in Sindh province of PakistanWANG Yong12-13,166Application of end slope merging steps control blasting in Shenshan open-pit coal mineSUN Yu14-167Application of self-motion transfer machine in large open-pit mineQIN Shuhui17-18,228Developing law of compound slope geometry structure in open-pit mineLIU Xiaoling, XU Zhijie, ZHANG Xueqin19-229Application of digital electronic detonators in east open-pit mine steps blastingWANG Gentao, ZOU Zongshan23-25,2810Research on stability of aging slope under steep end-slope mining in open-pit coal mineWANG Jianxin26-2811Effect of scraper conveyor speed on feeding type crusher production capacityXU Zhijian, SUI Jingqiang29-30,3212Feasibility of mining lower series coal by mining machine in Dafeng open-pit coal mineTIAN Jialong, ZHOU Junfeng31-3213Similar simulation of dump slope stability under water immersing basement conditionFU Xiangchao33-3514Reserves calculation method in Luxin group open-pit coal mineWANG Yingchun36-37,4015Work transportation system optimization in Baoli open-pit coal mineTIAN Shukun, LIU Suolin, WU Di38-4016Semi-continuous system migration methods in Huolinhe south open-pit mineCHEN Chuanlong, ZHANG Yong41-4317Advantage of hole-by-hole initiation technologyZHANG Wanzhong44-4618Overlying stratum blasting technology in open-pit mine goafLIU Yanbin, CUI Hongwei47-4819Application of deep hole large aperture blasting in Wujiata open-pit coal mine productionCHEN Weijie49-5120Discussion of crusher gear structure fastening mode on screening type double gear rollLU Chongshao, CHEN Xihong52-53 