1Gas formation mechanism during deep coal underground gasification and influencing factorsLIU Shuqin, WANG Weibin, LIU Yueming, QI Chuan, YANG Ruizhao, LIU Jinchang, CHANG Zhibing3707-37192Underground gasification process of coal based on vapor-oxygen ratio optimization and staged gasification reaction analysisSU Faqiang, LI Wen, LI Jiaoyuan, CHEN Yanpeng, CHEN Hao, LIU Yazhou, LIAN Songao, SHI Chenyang, YU Yihe3720-37303Surface deformation and rupture characteristics of overburden during underground coal gasification under high temperatureXIN Lin, WANG Xin, WANG Ruonan, YANG Min, LI Hualong, XU Weihao, SHANG Zhenjie, DIAO Tongtong, NIU Maofei3731-37414NMR-based investigation of pore structure evolution in coal during underground gasificationXUE Yi, TENG Teng, WANG Linchao, GAO Feng, LIU Guannan, GAO Yanan3742-37595Macroscopic permeability and microscopic structural evolution of anthracite under synergistic injection of steam and oxygen in gasification-pyrolysisWANG Lei, KANG Zhiqin, SUN Dingwei, JIA Yichao, MENG Qiaorong, YANG Dong3760-37736Review of key characteristics of UCG from a multi-scale perspectiveHU Zhuocheng, YAO Jun, SUN Hai, LI Longlong, AN Guoqiang, WU Zhaohui, YAN Xia3774-37967Numerical simulation technology framework and research progress,prospect of underground coal gasificationDONG Zhen, KONG Lingfeng, CHEN Yanpeng, ZHANG Mengyuan, XUE Junjie, ZHAO Yufeng, REN Bo, CAI Chengzheng, DENG Ze, CHEN Hao3797-38178Experimental study on the evolution law of mechanical properties of long-flame coal under supercritical carbon dioxide immersionLI Huaizhan, TANG Chao, GUO Guangli, CHEN Fu, ZHA Jianfeng, CAO Jingchun, LI Ruiheng3818-38299Research on site selection model for underground coal gasification based on fuzzy evaluation and BP neural network:A case study of Fukang Mining Area,XinjiangYU Yu, YANG Shuguang, ZHANG Na, LI Xin, WANG Haichao, SANG Shuxun, ZENG Zhiwei, TIAN Jijun, LAI Peng, TAO Jian, LIU Yunxuan3830-384210Experimental and numerical study on fault-slip induced roadway rockburstWANG Xuening, KANG Hongpu, GAO Fuqiang, WANG Xiaoqing, BAI Jianbiao, YANG Lei, YUAN Guiyang, LI Jianzhong3843-385611Optimised calculation of retention of waterproof coal(rock)pillars in coal seams containing water-conducting faultsYU Xiaoge, LUO Wenna, XU Dongjing, XIANG Jietao, ZHANG Ning3857-386712Strength evolution and silico-aluminous activation mechanism of red mud-based backfill materials in alkali-sulfate environmentsZHU Defu, LIU Jiguang, YAN Chuan, HAN Zhong3868-388313True triaxial test and failure criterion of coal gangue concreteZHAO Weiping, HE Yuxiang, JIANG Kongliang, YANG Jiaqi, XU Yang, CHEN Jialong3884-389914Effect of intermediate principal stress and minimum principal stress unloading stress path and rate on energy evolution of sandstone under true triaxial compressionLIU Zhixi, ZHAO Guangming, MENG Xiangrui, QIN Zhihong3900-391515Denoising method and application of microseismic signals for coal seam hydraulic fracturing based on deep neural network modeLI Quangui, ZHAO Yulong, HU Qianting, LIANG Yunpei, SUN Wanjie, LI Wenxi, ZHAN Jinfei, HE Jiangfu, HE Kun, CHEN Haiyu3916-393216Mechanism of extraction modification on multiscale pore structure and methane adsorption kinetics in coalWANG Liang, ZHENG Siwen, FU Shenguang3933-395217Prediction model for pressure loss of sphere column assembly in goaf and flow characteristics of porous mediaCHEN Fangxing, HAO Xiaoli, CHEN Shiqiang, ZHANG Jianwei, TIAN Feng, WU Xue3953-396518Research and application of cross fusion of the influence of the inclination angle of fully mechanized caving face on the differential shape dimension of gas transport and storageZHAO Pengxiang, CHANG Zechen, LI Shugang, LIN Haifei, ZHUO Risheng, SHAO Qiudong, PEI Wenbo, WANG Laolao3966-397919Pressure loss and linearity law of phase change in liquid nitrogen seepage flow in coal mine goafWU Xue, CHEN Shiqiang, CHEN Fangxing, LIU Gang, ZHAO Pengtao3980-399020Methods for calculating reserves,average reservoir pressure and gas recovery ratio for under-saturated coalbed methane reservoirsSHI Juntai, ZHANG Shuo, HUANG Hongxing, CAO Yunxing, CHEN Ming, WANG Kai, JI Yitianyu3991-4007 