1Consideration about coal production efficiency andcapacity reductionLI Rui-feng, REN Yang-hui, NIE Li-gong, TENG Xiao-yun, XING XiangDesign Technology1-32Study on the thickness design of shaft lining based on elastic-plastictheory of surround rockLUO Xiao-qingDesign Technology4-73Research on rational width of coal pillar in double-lanefully-mechanized working faceTAN Kai, SUN Zhong-guang, LIN Yin, LI Shuai, CUI Shao-pengDesign Technology8-104Design and application of two-level multi-node wirelesscommunication networkHOU GangDesign Technology11-145Design of Environment monitoring system for underground coalmining face based on EZMac ProtocolSUN Xue-boDesign Technology15-186Design of standby power supply for monitoring and controlsystem for refuge chamberLIU Ya-huiDesign Technology19-21,257Design of mine waste water treatment stationin Xiaohuigou Coal MineZHANG Yuan-yeDesign Technology22-258Discussion on treatment and graded comprehensive utilizationmethods for high-salinity mine waterMIAO Li-yong, WANG Wen-juanDesign Technology26-28,319Study on frost prevention design scheme for No.2 shaft of Hongliu Coal MineWANG yan, WANG Xin-weiDesign Technology29-3110Research and application of comprehensive control technologyin roadway under dynamic pressureLU Sheng-liangConstruction Technology32-3511Control technology of floor heave based on bolt-concrete antiarchcomposite structure under high geostressZHENG Wen-xiang, HU Yao-qingConstruction Technology36-3912Grouting reconstruction and effect analysis of coal floor aquiferin Xingyang Coal MineWANG Zhi-feng, ZHANG Yi-xinConstruction Technology40-4313Application of double-power cuttings removal in pressure-relief borehole constructionWEI Hong-chaoConstruction Technology44-4614Application of comprehensive geophysical prospectingtechnology in mine hydrogeologyConstruction Technology47-4915Study on top coal recovering technology in the tow roadways offully mechanized working face with 7m mining heightZHANG Li-huiProduction Technology50-52,5616Application of roadway repair machine in floor repair of Dafosi Coal MineLI Xu-tao, CHEN Pan, CHEN XiProduction Technology53-5617Study on gas outburst law and gas drainage modein Zhongliangshan mining areaPAN Wen-xia, YAN NingProduction Technology57-5918Technology for mining face crossing collapse area in steeply inclinedweak and outburst coal seamWANG Yi, WU Zai-sheng, XIAO Li-ping, LI Kai-xue, SONG Liu-jun, ZENG JieProduction Technology60-6219Prediction model and application of partition curvein gravity separation of coalSUN Na, WANG Hong, GUO DeProduction Technology63-6620Study on floor heave law of gob-side entry retaining in Zhongxing MineSHAN Ren-liang, ZHENG Yun, HUANG Bo, BAI Yao, LI Zhong-li, SUI Shun-mengResearch and Discussion67-70 