Showing 121 - 140 results of 954 for search '"Coal mining"', query time: 0.06s Refine Results
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    Speculum Observation and Trajectory Measurement in Gas Extraction Drilling: A Case Study of Changling Coal Mine by Enbiao Zhao, Kangnan Li, Xin Yang, Nan Deng

    Published 2021-01-01
    “…In this work, the field test of gas drainage borehole peeping and trajectory measurement in coal seam of Changling coal mine are carried out. These coal seams include C5b coal seam, upper adjacent C5a coal seam, C6a coal seams, C6c in lower adjacent strata, and C5b coal seam in high-level borehole. …”
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    Performance comparison and energy-saving optimization for two DTRO systems in coal mine concentrated brine treatment by WANG Renlei, FENG Yun, ZHU Li, WANG Qingxi, CAO Rong

    Published 2025-01-01
    “…It provided a positive reference for the long-term stable operation and energy conservation of large-scale DTRO system in the application of concentrated brine treatment in coal mine.…”
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  6. 126

    Complete genome sequence of Pseudarthrobacter sp. NIBRBAC000502770 from coal mine of Hongcheon on Republic of Korea by Min-Kyu Park, Yeong-Jun Park, Myung-Suk Kang, Min-Ha Kim, Soo-Young Kim, Jae-Ho Shin

    Published 2025-01-01
    “…NIBRBAC000502770, isolated from a coal mine in Hongcheon, Republic of Korea. The genome contains a chromosome (4,403,796 bp) and a plasmid (74,326 bp, named pMK-1) with 286-fold coverage. …”
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  7. 127
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    Evaluation Method of Floor Heave Damage Degree and a Case Study in Zaoquan Coal Mine, China by Ai Chen, Qing Ma, Xuesheng Liu

    Published 2021-01-01
    “…With the continuous increase of mining depth and complex mining geological conditions, the mileage of roadways in underground engineering such as coal mine is increasing year by year. Complex conditions lead to different floor heave failure laws, and the control technology and strategy should be changed accordingly. …”
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  9. 129

    Research on the Determination Technology of Key Position of Sealing Holes for Gas Extraction Drilling in Zhangcun Coal Mine by Yaobin Li, Huanhuan Dong, Xin Guo

    Published 2022-01-01
    “…Through the field test in Zhangcun Coal Mine, it is shown that when the sealing range is 7.5 m∼18 m, the best effect can be achieved, and when the sealing length is greater than the loose belt, the extraction concentration is higher, and the concentration attenuation and long drilling life are long.…”
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  10. 130

    Evolutionary Stability Analysis of the Coal Mine Safety Management System Governed by Delay and Impulsive Differential Equations by Li Bai, Xinhua Wang, Rongwu Lu, Hao Yu, Dan Li

    Published 2020-01-01
    “…Control of unsafe behaviors has always been a difficult point in Coal Mine Safety Management (CMSM). To study the regular pattern of behavior propagations in CMSM, a series of evolutionary dynamical system models are established by the delay and impulsive differential equations (DIDEs). …”
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  11. 131

    A method for evaluating the accessibility of underground auxiliary transportation vehicles in coal mines based on multi feature fusion by Fan JIANG, Yifan LIU, Zhencai ZHU, Chaofan ZHANG, Gongbo ZHOU, Yuxing PENG

    Published 2024-12-01
    “…Auxiliary transportation vehicles play an important role in the transportation of personnel, materials, gangue, and equipment underground in coal mines. The narrow space and complex environment of underground tunnels in coal mines, with alternating light intensity, can easily lead to driving safety accidents caused by fatigue, blurred vision, and operational errors of auxiliary transportation vehicle drivers. …”
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  12. 132

    Explosion-Induced Stress Wave Propagation in Interacting Fault System: Numerical Modeling and Implications for Chaoyang Coal Mine by Xiaojun Feng, Qiming Zhang, Muhammad Ali

    Published 2019-01-01
    “…Finally, the modeling results were implicated in Chaoyang Coal Mine to account for the distribution of the observed seismic events. …”
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  13. 133

    Determination of production capacity for open-pit coal mines under uncertainty: A model based on economies of scale. by Shuai Wang, Bo Cao, Runcai Bai, Guangwei Liu

    Published 2025-01-01
    “…To effectively address the impact of uncertainty on capacity planning, this study develops a production capacity planning model for open-pit coal mines, based on the theory of economies of scale and incorporating multiple uncertainty constraints. …”
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  14. 134

    Study on Permeability of Soil-Rock Mixture in Water-Blocking Layer of Open-Pit Coal Mine Dump Site by Boyu Luan, Wei Zhou, Xin Meng, Xiang Lu, Zhichao Liu

    Published 2020-01-01
    “…Constructing a water-blocking layer in the dump sites of an open-pit coal mine is of great significance to improve the water retention capacity of the reclamation area. …”
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    Study on the safety distance determination model for natural gas wells in Ordos Basin subsidence areas of coal mining by Wen Wang, Yang Zhang, Shuang Gong, Junqi Lei, Jiandong Ren, Yanxiong Ding, Xiaowei Lu

    Published 2025-01-01
    “…Abstract To optimize the safe distance between coal mining faces and natural gas wells, with the Ordos Basin as the engineering background for the intersectional development of natural gas and coal resources, a Gaussian function equation for subsidence curves under complete mining was proposed based on the probability integral method, and a model was constructed to determine the coordinated mining safety distance between coal mining faces and natural gas wells. …”
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  18. 138

    A Case Study on the Control of Large Deformations in a Roadway Located in the Du’erping Coal Mine in China by Xiaojie Yang, Chaowen Hu, Jianhui Liang, Yubo Zhou, Guofeng Ni, Ruifeng Huang

    Published 2019-01-01
    “…This paper describes a case study of large deformation control in a roadway surrounded with broken rock located in the Du’erping coal mine in the Shanxi Province of China. A new “shell + bolt + shotcrete” combined support structure is proposed to support the north wing main haulage roadway. …”
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    DITC control strategy for semi-direct drive system with switched reluctance motor in coal mine belt conveyor by LIU Peng, ZHANG Lei, BAO Jiusheng, CHEN Huaxin, WEI Chunji, MA Chuanming, WANG Lei, WANG Xiaolong

    Published 2024-12-01
    “…The underground belt conveyor at Pingdingshan Tian'an Coal Mining No. 9 Co., Ltd. uses a drive system consisting of an asynchronous motor, hydraulic coupling, and reduction gears. …”
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