1Research on integrated green mining technology of mining-backfilling-retainingCHEN Dong1-3,72Oblique mining technology with linear intensive support in steep thin coal seam with soft roofXIE Jin-hong, TAN Shun-zhou, RAO Yi-xin, ZHOU Si-you, TU Xing-dong4-73Present situation and suggestion for clean coal development and utilization in ChinaLU Xiao-quan8-10,144Application of steep end slope mining technology for Haerwusu open-pit coal mineZHOU Yong-li, LUO Huai-ting11-145Research on ditch depth for triangle-coal mining in end slope covering inner dumping parallel open-pit mineCHANG Zhi-guo, CHEN Ya-jun, DUAN Kun-peng, WANG Wei, REN Wan-ling15-176Application of comprehensive evaluation method in selection of mine auxiliary transportation schemeLIU Ming-yang, LI Qing-xi18-19,237Discussion on three-car single cage and car-operating device arrangement in Sijiagou ventilation shaft projectYIN Qing20-238Design and application of automatic adjusting control system for self-adaptive gas drainage pipeline valveAN Sai, ZHANG Hui, LI Hong-yan, FAN Xi-sheng, LIAN Zhen-shan24-269Design optimization for construction scheme of product silo roof structure in Zhuji west coal mine coal preparation plantZHANG Hua-quan, XIONG Hui, PENG Lu-ping27-28,3210Discussion on determination of the best separation conditions in coal preparation plant designWANG Yang, HE Li-jun, YANG Shen-lin, LIU Gang-qiang, ZHU Ai-min29-3211An overview on common chute design in coal preparation plantCHEN Ran33-35,38123D design exploration of coal industrial siteCUI Meng-meng36-3813Gob-side entry retaining with roof cutting pressure releasing in central seam of high gas coal seam groupTANG Zhao-jun, SHENG Jian-fa, SONG Run-quan, ZHANG Guo-feng39-41,4514Analysis on coupling performance of hydraulic support and weak surrounding rock in fully mechanized coal mining face in Nothern Anhui mining areaLIU Jun-feng, WANG Guo-fa, WANG Fu-qing, REN Huai-wei42-4515Optimization and application of support technology for retracement roadway in fully mechanized working faceLI Xing-hua, YUAN Deng-liang, XUE Rui-rui46-48,5116Experimental study on bolt-grouting support reinforcement for crossing-seam roadway under dynamic pressureSHEN Ming-zhu49-5117Deformation characteristics and control technology of extremely soft roadway surrounding rock under dynamic pressureWANG Yong-zhi, SUN Zhi-yong52-5418Discussion on a new method of underground traverse surveyTANG Fu-quan, AI Wei-tao55-5719High pressure spray dust suppression in fully mechanized tunneling faceLV Er-zhong, LIU Tao, YAN Chun, XU Ming58-60,6320Influence of overlying strata movement of fully mechanized top coal caving face on gas migration in adjacent seamsGU He-long, WANG Wen, WANG Li-min61-63 