1Rock Pressure Research of Roadway by Bolting in "Three Soft" Coal SeamXIA Yun-feng1-22Treatment Method and Reason of Support Slanting in Fully Mechanized Mining FaceZHANG Lei, WANG Bao4-53Increasing Manpower Capital Investment and Promoting Development of Coal EnterprisesZHONG Li7-84Thinking of Operation Cost Method Used by Coal EnterpriseGE Ming-liang9-105Short-Detection and Short-Infusion Water Contol Method Used in Liudong CollieryDONG Lian-chu13-156Optimization of Bolting Design in Coal RoadwayLIU Yu-wen15-167Changing Technique of Hoisting Rope of Vertical Shaft17-188Determination of Working Pressure of Pull Test Machine of Connecting Device in Mine CarSHI Bei-zhan, ZHANG Sheng-li19-219Integrated Drilling Technique Used in Subside Area of Pangzhuang CollieryCHENG Xun-chao23-2410Application of New Blasting Mining Technology in Coalshed Mining FaceZUO Bu-feng, LIU Sheng-dong24-2511Polyethylene Spill Plate Cowl Used in Coalshed Blasting Mining FaceSHANG Zong-rong26-2712Integrated Technique of Water Prevention in Jiawang Mining District of Xuzhou CoalfieldXU Hong-zhong, WANG Wei-biao27-2813Calculation of Connection Point Position from Fixed Point to Incline RoadwayCAI Zheng-en, MENG Qing-bo29-3014Construction Technology of -770m Coal Storage Shaft in Yi'an CollieryNIE Min, CHEN Fu-dong40-4115Zinc Oxide Arrester Used in Chacheng CollieryDENG Chun-li42,4416Application and Research of Constant Closed Blocking and Coting Closedown Device in Inclined RoadwayYIN Chun-yin, LU Qing-hua43-4417Analysis on Scraper Chain Break Accident in Scraper ConveyorLIU Xu46-4718Practice of Perch Gas Suction in 2102 Working Face of Yusheng CollieryBU Xian-rui48-4919Impact of Sliding Tectonics on Coal-Seam Gas OccurrenceGUO Yan-hua, WANG Huai-xin, NIU Hui-juan49-5020Construction of Annuity System of Enterprise in Xuzhou Mining GroupSU Ding, LI Wei-dong56-58 