1Progress and trend of key technologies of CBM development and utilization in China coal mine areasSUN Haitao, SHU Longyong, JIANG Zaibing, HU JianTopic on Achievements about Coal Bed Methane Development in Coal Mining Areas from National Science and Technology Major Project1-132Mechanism and technical system of ground and underground combined drainage of CBM in "four region linkage" in coal mining areaLI Guofu, ZHANG Suian, JI Changjiang, LI Junjun, WANG ChaoshuaiTopic on Achievements about Coal Bed Methane Development in Coal Mining Areas from National Science and Technology Major Project14-253Thingking and utilization technology of coalbed methane in soft and low permeabil-ity coal seams in Huainan Mining AreaKONG Xiangxi, TANG Yongzhi, LI Ping, WANG Chuanbing, CHEN Jian, LI Yanqing, YUAN Benqing, CHEN Benliang, YE MinTopic on Achievements about Coal Bed Methane Development in Coal Mining Areas from National Science and Technology Major Project26-354Research on rotary geosteering drilling technology and equipment in underground coal mineYAO Ke, LI Quanxin, FANG Jun, FANG Peng, WANG Longpeng, TIAN Dongzhuang, CHEN Long, XU ChaoTopic on Achievements about Coal Bed Methane Development in Coal Mining Areas from National Science and Technology Major Project36-425Application of ultra-high pressure hydraulic slotting technology in medium hardness and low permeability coal seamTANG Yongzhi, LI Ping, ZHU Guiwang, CHEN Jian, CHEN Dezhong, FENG Anxiang, TANG Zhihua, YANG Yang, YE MinTopic on Achievements about Coal Bed Methane Development in Coal Mining Areas from National Science and Technology Major Project43-496Key technology progress of surface extraction project deployment based on coordinated development of CBM and coalJIANG Wenping, CHAI Jianlu, ZHANG Qun, ZHANG Peihe, JIANG ZaibingTopic on Achievements about Coal Bed Methane Development in Coal Mining Areas from National Science and Technology Major Project50-617Review and prospect of coal rock hydraulic fracturing physical experimental researchLI Quangui, DENG Yize, HU Qianting, WU Xiaobin, WANG Xiaoguang, JIANG Zhizhong, LIU Le, QIAN Yanan, SONG MingyangTopic on Achievements about Coal Bed Methane Development in Coal Mining Areas from National Science and Technology Major Project62-728Research on temporal?spatial relationship between ground fracturing wells and un-derground drilling for substitution drainage of during extraction exhaustion periodLI Yang, SHU Longyong, FAN Yongpeng, HAO Jinwei, ZHOU Jianwei, HE JianTopic on Achievements about Coal Bed Methane Development in Coal Mining Areas from National Science and Technology Major Project73-829Science and technology innovation and practice of major national science and technology special project of coalbed methane in coal mining areaHU Jian, CHAI Jianlu, YUE Chaoping, LI Guofu, QIN Yujin, GUO Yuhui, CHEN Jian, SUN Haitao, LIU BogenTopic on Achievements about Coal Bed Methane Development in Coal Mining Areas from National Science and Technology Major Project83-9110Key technology and application of pre-stressed anchor to improve pre-tightening forceHOU Junling, LI Chuiyu, ZHAO Neng, DU Chenghang, ZHANG Dunxi, LI PeiMining Science and Engineering92-10111Research on staggered distance of upper and lower coal seam cooperative mining face based on subsidence predictionREN Xingyun, HAO Bingyuan, HE Fushuai, WANG Hongwei, MIAO QingwangMining Science and Engineering102-10812Study on vibration response characteristics of kilometre deep shaft induced by frozen soil blasting in ultra deep alluviumYU Jianxin, ZHOU Lianhao, GUO min, LI Zhenzhen, ZHANG YingcaiMining Science and Engineering109-11613Unloading deterioration and mechanism of rock under different loading and unloading stress pathsZHANG Fengda, ZHANG Yujun, YU QiugeMining Science and Engineering117-12714Damage characteristics and mechanical properties of superhigh-water material consolidated body under triaxial stressHU Shijie, WANG Fangtian, GAO Xiang, REN Shuai, FENG GuangmingMining Science and Engineering128-13515Construction of intelligent prevention and control of coal mine fire based on "cloud-edge-end" cooperationCHEN XiaojingSafety Science and Engineering136-14316Test and analysis of coal adsorption volume of CH4JIANG Yanhang, BAI Gang, ZHOU Xihua, WANG Yuxi, FU Tianyu, HU KunSafety Science and Engineering144-15217Pore structure characteristics of middle and low rank coals and their influence on gas desorption characteristicsLIU Jikun, REN Bang, WANG CuixiaSafety Science and Engineering153-16118Characteristics of apparent resistivity of coals with different particle sizesLIU Shiqi, GAO Deyi, SANG Shuxun, WANG HeEarth Science and Surveying162-16919Influence of coal structure and macrolithotype of coal on coal adsorption and desorption of gasZHAO Fangyu, DENG Ze, WANG Haichao, WANG Ze, SUN Pichen, YANG ShengboEarth Science and Surveying170-18420Molecular dynamics simulation of the effect of SDS / SDBS on the wettability of anthraciteCHEN Xuanlai, YAN Guochao, YANG Xianglin, FENG Zhizhong, WEI Shuai, GENG NanEarth Science and Surveying185-193 