Field Study on the Law of Surface Subsidence in the High-Intensity Fully Mechanized Caving Mining Working Face with Shallow Thick Bedrock and Thin Epipedon in Hilly Areas by Yi Tan, Hao Cheng, Shuang Gong, Erhu Bai, Minchao Shao, Bingyuan Hao, Xiaoshuang Li, Han Xu

“…The measured surface stabilization time of the P2 working face is only 20% of the calculated value in the Specification for Coal Pillar Reservation and Coal Mining under Buildings, Water Bodies, Railways, and Main Shafts (hereinafter referred to as the Specification), indicating that the specification's empirical formula is inapplicable to the calculation of surface stabilization time of the P2 working face.…”
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Spatiotemporal variability of groundwater chemistry, source identification and health risks in the southern Chinese Loess Plateau by Zijun Li, Qingchun Yang, Chuan Xie, Hongyun Ma, Bin Wu, Yanli Wang

“…The anthropogenic sources including agricultural activities (20.7 % and 21.8 % in JH-U and ML) and coal mining activities (20.1 % and 29.5 % in JH-U and ML) also played a role in affecting groundwater quality. …”
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Mine Flooding History of a Regional Below-Drainage Coalfield Dominated by Barrier Leakage (1970–2014) by Joseph J. Donovan, Eric F. Perry

“…A 44-year record of water level fluctuations in a series of adjacent closed underground mines documents the history of closure and mine flooding in the Fairmont Coalfield, one of the oldest coal mining districts in the Pittsburgh coal basin, West Virginia, USA. …”
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Rebound Mechanism and Control of the Hard Main Roof in the Deep Mining Roadway in Huainan Mining Area by Denghong Chen, Chao Li, Xinzhu Hua, Xiaoyu Lu, Yongqiang Yuan, Chen Li

“…Taking the occurrence conditions of the hard main roof in the deep 13-1 coal mining roadway in Huainan mining area as the research object, based on the mechanical parameters of the surrounding rock and the stress state of the main roof obtained by numerical simulation, a simply supported beam calculation model was established based on the damage factor D, main roof support reaction RA, RB, and critical range C (9 m) and B (7 m) at the elastoplastic junction of the solid coal side and mining face side (hereinafter referred to as “junction”). …”
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Study on mechanical properties of sandstone damaged by blasting load under triaxial cyclic loading and unloading by Haibo Wang, Genshuo Zhu, Ziyi Lu, Qi Zong, Hao Wang

“…An increase in the confining pressure enhanced the deformation and failure resistance characteristics of the specimens. (4) Compared with those under conventional triaxial loading, specimens under cyclic loading and unloading failed faster after reaching the ultimate volumetric strain, and specimens damaged by blasting were more likely to fail. During deep coal mining, the bearing capacity and deformation resistance of rock masses damaged by blasting after repeated disturbance loads were greatly reduced. …”
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Breaking law of overburden rock and key mining technology for narrow coal pillar working face in isolated island by Du Feng, Li Zhenhua, Li Songtao, Li Xiaolei, Li Guodong, Fan Xuan, Ren Hao, Cao Zhengzheng

“…Through statistical analysis of the types of residual coal and the mining techniques, the current research status of residual coal mining system in China has been summarized. Based on the safety recovery technology system for multi-type residual coal pillar resources at Zhaogu No.2 Mine, this paper focuses on narrow coal pillar working faces in sections with fully mined-out areas on both sides. …”
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The study of mechanical properties and fracture evolution of coal-rock masses under hard roof-soft floor conditions by Jiajun Li, Yin Zhang, Chenchen Yang, Jiaqi Liu, Yu Zhou, Chunlin Li

“…Abstract As the depth of coal mining in China continues to increase, the fracturing of coal rock masses has an increasingly complex impact on the surrounding rock roadways. …”
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Physical modelling of damage mechanism of slopes containing near horizontal weak layers under rainfall conditions by Zhigang TAO, Chuang XU, Songyuan LIU, Yong LI, Kexin XIU

“…In recent years, with the continuous scale expansion of surface coal mining in China, the stability and safety of slopes in surface mining areas have received more and more attention. …”
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Advanced modeling of seepage dynamics and control strategies in thick coal seams under high-confined aquifer conditions: A case study by Xuyang Chen, Xufeng Wang, Dongsheng Zhang, Liang Chen, Jiyao Wang, Zechao Chang, Dongdong Qin, Hao Lv

“…Therefore, unraveling the floor failure mechanism is particularly important for safe coal mining above the high-confined aquifer. This paper estimates the depth of the baseplate failure to be 18.4–27.3 m by combining network parallel electrical methods with drilling visualization technology. …”
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Promising Directions in Chemical Processing of Methane from Coal Industry. Part 4. Long-term Stability Test by Е.V. Matus, O.V. Tailakov, O.B. Sukhova, A.V. Salnikov, O.A. Stonkus, M.A. Kerzhentsev, S.R. Khairulin, Z.R. Ismagilov

“… For the processing of coal mine methane into hydrogen-containing gas, a catalytic process of methane tri-reforming was studied under long-term testing conditions (800 ᵒC, 100 h). …”
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Construction Risk Assessment of Tunnel Crossing Goaf Based on Analytic Hierarchy Process‐Extension Theory Model by Chao Yuan, Lian‐xin Li, Xiao‐wei Su, Rong‐jie Du

“…To grasp the risk status of tunnel construction safety in coal mine goaf, we selected 11 risk factors as evaluation indicators on the basis of investigation and analysis of risk factors in a large number of engineering cases of tunnel crossing coal mine goaf. …”
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Feasibility of Water Injection on the Coal Wall of Loose Thick Coal Seam to Prevent Rib Spalling and Its Optimal Moisture Content by Jian Sun, Bin Li, Ruofei Zhang, Zhou Huang

“…Rib spalling of loose thick coal wall seriously restricts the high yield, high efficiency of coal mine, affecting the safety production of coal mine. …”
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Application of Intelligent Sensor in Mining Electrical Equipment Collection by Jing Chang, Fating Zhang, Yuyu Zhu

“…The effect of the abovementioned acquisition scheme in coal mine application is verified, so as to realize the scientific monitoring of coal mine safety.…”
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Study on In Situ Stress Distribution Law of the Deep Mine: Taking Linyi Mining Area as an Example by Xuelong Li, Shaojie Chen, Sheng Wang, Meng Zhao, Hui Liu

“…The maximum horizontal stress direction of the Gucheng Coal Mine, Guotun Coal Mine, and Pengzhuang Coal Mine was NW-SE under the influence of regional geological structure, while the maximum horizontal stress direction of Wanglou Coal Mine was NE-SW under the influence of local geological structure. …”
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Transient Pulse Test for Non-Darcy Flow Behaviors and Hydromechanical Coupling Effect of Fractured Limestone by JianChao Cheng, YanLin Zhao, Yang Li, Tao Tan, Le Chang

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Research on Width Optimization of Bearing Coal Pillar Between Roadways Under the Influence of Mining on Both Sides by Linjun Peng, Kaixuan Gong, Manchao He

“…The rational coal pillar width directly improves the utilization rate of coal resources and the safety of coal mines. Taking Jinjitan Coal Mine as the engineering background, using theoretical analysis and calculation through numerical simulation, the distribution of internal stress field and plastic zone of different widths coal pillars under the influence of mining on one side and mining on both sides is compared and analyzed; the original 20 m coal pillar between 113 working face transportation roadway and auxiliary transportation roadway (i.e., 111 working face air return roadway) in Jinjitan Coal Mine was optimized. …”
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Erratum to “Experimental Analyses of the Major Parameters Affecting the Intensity of Outbursts of Coal and Gas” by W. Nie, S. J. Peng, J. Xu, L. R. Liu, G. Wang, J. B. Geng

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Distribution Law of In Situ Stress and Its Engineering Application in Gateroad Maintenance: A Case Study by Guangchao Zhang, You Li, Guangzhe Tao, Miao Chen, Ruihua Xu, Hanqing Guo, Devkota Bidit, Guanglei Zhou, Zhi Qu, Hao Zuo

“…In this study, the stress relief method of hollow inclusion and mathematical-statistical analysis are used to study the in situ stress distribution law of the Guotun coal mine, and the optimization strategy of roadway support is put forward. …”
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Numerical simulation study on temperature characteristics of double-deck suspension bridge in vehicle fires by Bobo Shi, Ke Jia, Shaokun Ge, Changlin He, Jun Zhao

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Anomaly Detection for Time Series with Difference Rate Sample Entropy and Generative Adversarial Networks by Keke Gao, Wenbin Feng, Xia Zhao, Chongchong Yu, Weijun Su, Yuqing Niu, Lu Han

“…The prediction and early warning of coal mine thermodynamic disasters are mainly determined by the changes of the index gas concentration pattern in coal mine mined-out areas collected continuously. …”
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