Application of Clustering and Stepwise Discriminant Analysis Based on Hydrochemical Characteristics in Determining the Source of Mine Water Inrush by Weitao Liu, Jie Yu, Jianjun Shen, Qiushuang Zheng, Mengke Han, Yingying Hu, Xiangxi Meng

“…In order to explore the law of groundwater evolution, the water source connection between faults and aquifers and the main sources of mine water inrush in the deep mining area of Yangcheng Coal Mine in Jining City, 40 groups of hydrochemical samples were collected and analyzed by Piper Diagram and Durov Diagram. …”
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Mechanical Properties and Control Rockburst Mechanism of Coal and Rock Mass with Bursting Liability in Deep Mining by Ming-tao Gao, Zhen-qi Song, Hui-qiang Duan, Heng-qi Xin, Jian-quan Tang

“…In order to study the mechanism of the dynamic disaster of rockburst in a deep coal mine and the prevention and control measures of weakening shock, the MTS815.03 servocontrolled rock mechanics test system is used to test the coal, rock, and combined specimens with the buried depth of nearly 1200 m in Xinwen Mining Area. …”
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Influence of tunnel construction on karst groundwater environment in central Huaying Mountain by Sheng CHENG, Mo XU, Qiang XIA

“…The study also assessed the influence of the existing Huayingshan Tunnel on highway G42 and the Lvshuidong coal mine engineering activities on the groundwater environment, and explored the potential impact of the new Huayingshan Tunnel of Guang’an−Linshui highway on the karst groundwater environment. …”
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Analysis on the Influence Degree of Deformation Control Factors of Deep-Buried Roadway’s Fractured Surrounding Rock Using Orthogonal Design by Ke Li, Weijian Yu, Youlin Xu, Ze Zhou, Mengtang Xu, Wei Liang

“…The deformation of deep-buried roadway’s fractured surrounding rock development was investigated using multi-index orthoplan in this paper. According to the coal mine field investigation, support structure’s failure often occurs, and some need to be repaired many times. …”
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Determining the Height of Water-Flowing Fractured Zone in Bedrock-Soil Layer in a Jurassic Coalfield in Northern Shaanxi, China by Jie Feng, Sujian Wang, Enke Hou, Xiang Ding, Huijun Duan

“…The height of the water-flowing fractured zone is the most important technical parameter for water prevention and control in a coal mine. Due to the numerous factors affecting the water-flowing fractured zone, it is difficult to accurately identify the zone. …”
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Numerical simulation study on mining method for anti rock burst in different steeply inclined extra-thick coal seam by Zemin CHEN, Zhenlei LI, Taoping ZHONG, Dazhao SONG, Xudong LIU, Xucong HU

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Experimental Investigations on Charge Induction and Microseismic Characteristics of the Coal and Rock under Different Loading Rates by Yuchun Liu, Ling Ding, Yangfeng Zhao, Yi Fan, Hongfei Li

“…In this study, the coal and sandstone samples from the No. 11 mine of Pingdingshan Coal Mine are prepared. The charge induction and microseismic synchronous comprehensive monitoring system is built. …”
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Geriatric nutritional risk index is associated with the occurrence of acute kidney injury in critically ill patients with acute heart failure by Sen Zhang, Nan Chen, Zhuo Huang, Ningyuan Yan, Liansheng Ma, Xiaoqin Gao

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Study on the significant effects of ignition energy and gas volume fraction on gas explosion pressure and flame propagation speed by Liang ZHANG, Fangfang LAI, Jingde XU

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Experimental investigation into the Impact of Cyclic High Low Pressure Water Immersion on the Pore structure and Mechanical properties of coal by Pi Zikun, Li Rui, Wang Yan, Xiong Jiawen, Li Jiayi, Zhang Yifu, Peng Bin

“…These results provide a theoretical foundation and practical support for the application of hydraulic fracturing to improve permeability and the use of water injection to suppress gas outflow in coal seams with high gas content and low permeability within coal mines.…”
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Optimization of cross-sectional shape and support parameters of headgate in fully mechanized coal seam with large dip angle and close distance by Kun PAN, Wenjun JU, Junchao WANG, Housheng JIA, Biao HOU, Yinwei WANG, Zhiming ZHANG

“…Taking the headgate 31233 in Daichiba Coal Mine as the engineering background, the mechanism of surrounding rock deformation and failure in roadways with three cross-sectional shapes under thecoal seam with large dip angle and close distance was studied through theoretical analysis, numerical simulation, and on-site monitoring. …”
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A Study on Axial Compression Performance of Large Diameter-Thickness Ratio Concrete-Filled Gas Drainage Steel Pipe by Zi-Lu Liu, Zhan-Guo Ma, Ye Li, Peng Gong, Ke-Long Li, Wang Liu

“…A large number of gas drainage pipes are obsoleted in the coal mine gas drainage system, and it causes serious waste. …”
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Evolution Characteristics of a High-Level Asymmetric Fracture-Seepage Community and Precise Coalbed Methane Drainage Technology during Mining of Outburst-Prone Coal Seam Groups by Hongbing Wang, Zhiheng Cheng, Tie Li, Liang Chen, Quanle Zou, Shengli Yang, Jialin Cao

“…For these purposes, by taking Shaqu No. 1 Coal Mine (Lvliang City, Shanxi Province, China) as a research object, this research studied migration and caving characteristics of overlying strata by combining physical similar material simulation, numerical simulation, and field measurement. …”
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An Experimental Investigation on the Relationship between MS Frequency Response and Coal and Gas Outburst by Quanjie Zhu, Qingsong Li, Yu Feng, Xianwei Heng, Shaoquan Li, Tao Yang

“…This approach can be useful for rockburst anticipation and control during mining in gas and highly stressed coal mines.…”
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Nanoscale Pore Structure Characterization and Permeability of Mudrocks and Fine-Grained Sandstones in Coal Reservoirs by Scanning Electron Microscopy, Mercury Intrusion Porosimetry... by Na Zhang, Fangfang Zhao, Pingye Guo, Jiabin Li, Weili Gong, Zhibiao Guo, Xiaoming Sun

“…Porosity and permeability of two typical sedimentary rocks in coal bearing strata of underground coal mines in China, i.e., mudrocks and fine-grained sandstones, were comprehensively investigated by multiple experimental methods. …”
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Influence of Chamber Geometrical Parameters on Suppressing Explosion Propagation by Zhuo Yan, Shengli Guo, Shujie Yuan, Chaomin Mu

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Research on the development height of water-conducting fracture zone in overburden rock based on transient electromagnetic method in hole by Qinghua LIANG, Xiangjun DING, Guangliang LIU, Zhicheng LIU, Chunyuan WANG, Huan ZHANG

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Sliding Impact Mechanism of Square Roadway Based on Complex Function Theory by Decheng Ge, Fuxing Jiang, Cunwen Wang, Yang Chen, Chunyu Dong, Sitao Zhu, Zhaoyi Wang, Fei Han

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A Study of the Solid-Liquid-Gas Three-Phase Coupling Relationship of Coal, Water and Gas by Anying Yuan, Chunhui Huang, Junling Hou, Zhaomin Zhang, Weihui Pan, Lei Duan, Quansen Wu

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A Fully Coupled Hydromechanical Model for CO2 Sequestration in Coal Seam: the Roles of Multiphase Flow and Gas Dynamic Diffusion on Fluid Transfer and Coal Behavior by Rui Yang, Weiqun Liu, Tianran Ma, Junhe Xie, Yang Hu, Rui Zhou, Yongjie Yang

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