1Analysis and evaluation system on influence factors of coal resource development in XinjiangZHANG Hua, LI ShufengDesign Technology1-52Optimization of inner dump height in the north end wall of the first mining district of Harwusu Open-pit Coal MineWANG Guilin, ZHANG Yu, WANG Xiaodong, LIU Xuanyu, LYU WenweiDesign Technology6-103Discussion on problems in power supply system design of substation in 8.8 m high mining areaDU Jun, WANG Yanrong, HAN Haiyun, SI XiangDesign Technology11-154Suspension switching system of the integral frame type heavy duty hydraulic suspension vehicleBAI Laiping, LIU Zhenping, HU Jinlong, LI Yan, ZHANG WenzhuoDesign Technology16-225Safety redundancy design of autonomous dump trucks in open-pit coal mineDING Zhen, WANG Xin, LIU SizheDesign Technology23-296Design and production management of medium system in coal preparation plantLIANG YanguoDesign Technology30-367Application of gob-side entry retaining in Shangwan Coal Mine of Shendong mining areaZHAI ChunbaoConstruction Technology37-428Overburden breaking characteristics and surrounding rock stability of withdrawal channelSHI Jiabin, LIU Husheng, CUI Dongliang, JI Zhi, DUAN WeiConstruction Technology43-489Stability monitoring of roadway surrounding rock under blasting vibrationWANG Xinguo, HE YanpengConstruction Technology49-5310Underground drilling and draining depressurization of roof water in Yushen mining areaWANG Yongping, ZHANG Mingrui, YUAN XiangrongConstruction Technology54-5911Application of transient electromagnetic method in coal mine hydrogeological explorationHU Bing, XU Han, LIU Zhenyu, GU Leiyu, ZHOU Quanchao, HAO Jiaoyang, WANG Bingshan, GENG HualeConstruction Technology60-6412Roof caving technology for open-off cut in 8.8m super-high fully mechanized mining face of extra-thick coal seamLYU Shuai, LIU Jianyu, CUI Dongliang, LIU Peng, CHEN YupengProduction Technology65-6913Roof control technology for final mining of working face with double withdrawal channelYANG ChaoProduction Technology70-7314Safety technology for advancing through overlying concentrated coal pillar in large mining height working faceZHENG Jian, SHI JiabinProduction Technology74-7815Enhancement of operation rate of shearer in 8.8 m super-high working faceJI Hongbo, SHI Jiabin, CHEN YupengProduction Technology79-8416Residual top coal thickness detection technology and its application in shearer drum height controlZHANG Ronggang, WANG ShuaifengProduction Technology85-8917Roof water draining technology in shallow and thin bed rock coal seamWANG Yi, SUN ChangminProduction Technology90-9418Grounded-fault protection based on DC component ratioZHANG Min, ZHOU XuanProduction Technology95-9919Intelligent dry separation technology of power coal lumpsGUO Jianjun, ZHONG GuolongProduction Technology100-10320Noise analysis and treatment of vehicle hydraulic system in underground mineWU Wenliang, GONG Cheng, WANG Guofeng, QU Zhuoyang, LI Fan, YANG HaoProduction Technology104-110 