Experimental Investigation on the Energy Consumption Difference between the Dynamic Impact and the Drilling Tests of Rocks by Shoudong Xie, Mingjian Huang, Junji Lu, Wang Xi, Zhenyang Xu

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Numerical research on the influence of ventilation velocity on fire smoke distribution in bifurcated roadway by Cui DING

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Risk Decision-Making Technology in Gas Reservoir Development at Sichuan Basin by Guo Yu, Haitao Li, Yanru Chen, Linqing Liu, Dongming Zhang

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Damage Characteristics Caused by Deep-Hole Blasting near Normal Fault and Its Effects on Coal and Gas Outbursts by Kui Gao, Guodong Qiao, Zegong Liu, Wei Xia

“…Based on cases of coal and gas outbursts in the Didaoshenghe Coal Mine in Heilongjiang Province, China, an important reason for such incidents is considered to be the blasting areas of normal faults being disturbed by air-powered coal drilling.…”
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Floor Disturbance and Failure Characteristics of Super-Large Mining Height Working Face by Cunjin Lu, Jinpeng Xu, Hui Zhao, Heng Zhang, Yian Zhang, Mingyue Chen

“…In this paper, the working face with a super-large mining height of 24 m in Longwanggou Coal Mine was studied. Electrical monitoring and numerical simulation of the working face floor were carried out. …”
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Development and Application of Fluid-Solid Coupling Similar Materials in Discharge Test of Old Goaf Water by Zhenhua Li, Mingxiao Ma, Yongsheng Bao

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Study on the abrasion property of the anvil inside a hydraulic DTH hammer fitted with horizontal oriented sliders by Jiang-fu He, Qi-lei Yin, Kun Yin

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Experimental investigation on rock fragmentation charactersitics of pressurized pulsed water jet by Yuanfei Ling, Xiaoqiang Wang, Jiren Tang, Yangkai Zhang

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Shear Behavior and Anisotropy Characteristics of the Fracture Morphology of Sandstone with Different Water Contents by Changang Du, Lulu Sun, Botao Qin, Jiang Xu, Yixin Liu

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Stability Control Mechanism of High-Stress Roadway Surrounding Rock by Roof Fracturing and Rock Mass Filling by Fuzhou Qi, Zhanguo Ma, Dangwei Yang, Ning Li, Bin Li, Zhiliu Wang, Weixia Ma

“…Field measurement results indicated that the roadway large deformation was successfully resolved during excavation and panel retreat after implementing the novel approach, providing useful references for the application of this novel approach in similar coal mines.…”
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Evolution Law of Overburden Longitudinal Connected Fissures in a Shallowly Buried Coal Face with Thin Bedrock by Housheng Jia, Kun Pan, Luyao Wang, Shaowei Liu, Mengxiong Fu, Xiang Ji

“…To understand the evolution of longitudinal connected fissures and propose method for controlling such fissures, 3-1 Coal of the Jinjie Coal Mine in Shendong Coal Group, China, was used as a case study. …”
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Portable Gas Analyzer Based on Fourier Transform Infrared Spectrometer for Patrolling and Examining Gas Exhaust by Yuntao Liang, Xiaojun Tang, Xuliang Zhang, Fuchao Tian, Yong Sun, Haozhe Dong

“…Aimed at monitoring emission of organic gases such as CH4, C2H6, C3H8, iso-C4H10, n-C4H10, C2H4, C3H6, C2H2, CO, and CO2, from coal mines, petroleum refineries, and other plants, a Fourier Transform Infrared (FT-IR) spectrometer was used to develop a portable gas analyzer for patrolling and examining gas exhaust. …”
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Research on the Deformation Law and Stress Distribution Characteristics of Overburden under the Influence of Multiple Faults by Yaobin Qi, Weijian Yu, Desun Yu, Hanxiao Guo, Bao Pan

“…Taking the geological conditions of a coal mine in Liupanshui City, Guizhou Province, as the background. …”
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Evolution Mechanism of Water-Conducting Channel of Collapse Column in Karst Mining Area of Southwest China by Zhengzheng Cao, Yulou Ren, Qinting Wang, Banghua Yao, Xinchao Zhang

“…In order to reveal the evolution mechanism of water-conducting channel of collapse column in karst mining area of southwest China, the aquifers and water inflow rule in 1908 working face in Qianjin coal mine are analyzed. Besides, the particle size distribution and mineral component of collapse column are researched by the X-ray diffraction test and the screening method, which are the basis for researching the water inrush mechanism in karst collapse column. …”
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Performance Research of Materials and Engineering Application of Overburden Strata Separation-Zone Grouting Technology by Wanpeng Huang, Huanyu Li, Gang Sun, Donghai Jiang, Yanfa Gao

“…Simultaneously, this advancement improves the resource recovery rate of coal mines and provides greater benefits for mining enterprises.…”
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Macro-Micro Study on Mechanical Properties of Frozen Fine Sandstone Based on DEM Mathematical Model by Maoyan Ma, Min You, Shuguang Peng, Biao Zhang, Yuan Lin

“…The study of freezing rock mechanical properties is getting more and more urgent because of coal mine construction in western China. Particle discrete element method (DEM) can describe discontinuous medium problem mathematically. …”
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Study on Mechanism and Control Technology of Asymmetric Floor Heave in a Deep Soft Rock Main Roadway by Fulian He, Wenli Zhai, Xuhui Xu, Jiayu Song, Liang Li, Kai Lv

“…Considering the serious asymmetric deformation and failure of the floor of 1# main roadway in Wanglou Coal Mine, the mechanism of roadway asymmetric floor heave was studied through on-site investigation, theoretical analysis, numerical simulation, and on-site test. …”
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Influence of the Branched Structure of Polyoxyethylene Units in Nonionic Surfactants on the Wettability of Anthracite: A Combined Modeling and Experimental Study by Xuanlai Chen, Guochao Yan, Guang Xu, Xianglin Yang, Jiajun Li, Xuyang Bai

“…Coal dust is a significant concern to the safety of coal mine operations. The wettability of coal can be effectively altered by adding surfactants to water. …”
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Experimental Investigation of Dynamic Compression Mechanical Properties of Frozen Fine Sandstone by Jiehao Wu, Haibo Wang, Qi Zong, Ying Xu

“…Aiming at the dynamic mechanical properties of weakly cemented fine sandstone in the rich water-bearing strata in western China under dynamic loading, a 50 mm rod diameter separation Hopkinson pressure bar (SHPB) test was used to study the Paleogene fine sandstone in a coal mine in Ningxia. The system carried out the impact compression tests of −15°C, −20°C, and −30°C and the average strain rate of 28 s−1–83 s−1 and obtained the dynamic compressive strength of the frozen fine sandstone specimens under different test conditions. …”
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Study on the Full‐Cycle Stress Evolution Law and Reasonable Size of Isolated Coal Pillar by Xiao‐Xiang Wei, Qing‐Long Yun, Jing Wu, Xiao‐He Wang, Yin‐Wei Wang

“…ABSTRACT To study the stress distribution law under different mining times and spaces of the protected coal pillar in the isolated working face, this paper takes a coal mine in Shanxi as the engineering background and adopts numerical simulation and theoretical analysis to obtain the stress distribution law of protecting coal pillar in the isolated working face during the tunneling period and the mining period of the working face, and proves the reasonable size of protecting coal pillar. …”
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