Casing running and solidifying bore by grouting in directional long borehole in coal mine by Yanjun FENG, Hong HOU, Jianchao REN, Maofu LIU, Liqiang SUN

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Key technologies for supporting ultra large section tunnels and the evolution law of mining induced stress by Lixing CHENG, Rui WANG, Zhen ZHANG, Zenglin LI, Jianchao REN, Zhanling WANG, Jinhe JIA

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Overburden destruction structure model and mechanism of mine pressure in Caojiatan coal mine with 10 m super large mining height by Zhen ZHANG, Zhizeng HUANG, Xiaogang LIU, Jianchao REN, Qianjin LIU, Xingyu LIN, Jisheng XUE, Rongshan MA

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Research and application of pressure relief technology for fracturing thick hard roof in super-high mining face by Yajun LEI, Yanjun FENG, Hongpu KANG, Futang ZHAO, Xiaoguang SHANG, Rui WANG, Peng WANG, Zhen ZHANG, Jianchao REN, Kaikai ZHAO, Yangfa ZHENG, Xiaogang LIU

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Key technology and equipment for fully mechanized mining with extra-large shearing height of 10 m in extra-thick coal seam by Hongpu KANG, Yajun LEI, Futang ZHAO, Gang XU, Zenglin LI, Mingzhong LI, Rui WANG, Zhizeng HUANG, Jiangbin LIU, Ying MA, Cundi HAN, Yanjun FENG, Zhen ZHANG, Jinhu ZHANG, Jianchao REN, Yejie SONG, Mingsheng ZENG, Lixing CHENG

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