Showing 341 - 360 results of 750 for search '"coal mines"', query time: 0.07s Refine Results
  1. 341

    A GIS Based Unsteady Network Model and System Applications for Intelligent Mine Ventilation by Hui. Liu, Shanjun Mao, Mei. Li, Pingyang Lyu

    Published 2020-01-01
    “…The study is potential and is expected to guide the real-time coal mine safety production.…”
    Get full text
    Article
  2. 342

    Study on The Influence of Direct Ground Liquid CO2 Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological Conditions by Naifu Cao, Yuntao Liang, Gang Wang

    Published 2021-01-01
    “…In order to reveal the impact of a high concentration of CO2 on the soil in the coal mining subsidence area, the surface above the goaf before CO2 injection is regarded as a subsidence area model. …”
    Get full text
    Article
  3. 343

    Study on Gas Control Methods Optimization for Mining Safety by Liwen He, Yingcheng Dai, Sheng Xue, Chunshan Zheng, Baiqing Han, Xin Guo

    Published 2021-01-01
    “…Effective gas control is of significance for safe efficient coal mining in Haizi Coal Mine and other mines with similar geological conditions. …”
    Get full text
    Article
  4. 344

    Mine Geological Environment Monitoring and Risk Assessment in Arid and Semiarid Areas by Jiaqi Jin, Chicheng Yan, Yixuan Tang, Yilong Yin

    Published 2021-01-01
    “…Along with the accelerated shift of coal mining to the ecologically fragile west, the contradiction between coal resource development and ecological protection in the western arid and semiarid coal mining areas is rapidly intensifying. …”
    Get full text
    Article
  5. 345

    Mechanical Behavior and Impact Resistance Tendency of Coal Mass with Different Water Content by Fei Liu, Yongsheng Han

    Published 2022-01-01
    “…As a major hidden danger of mine safety production, the impact resistance tendency of rock seriously restricts the safety and high yield of coal mine. At the same time, as one of the puzzles of rock mechanics, it has been perplexing many domestic and foreign scholars since the recorded rock burst in South Stafford coal mine in 1738. …”
    Get full text
    Article
  6. 346

    New Insights into the Drill Cutting Characteristics and Fault Distribution in Gas-Containing Coal Seams by Xinghua Zhang, Haifeng Wang, Dan Zhao, Zheng Shang, Tianwei Ren, Shuaikang Geng, Xiaorui Hao, Chang Liu, Jinzhou Li

    Published 2022-01-01
    “…With coal seams of different buried depths in Luling Coal Mine, Yuenan Coal Mine, and Sihe Coal Mine with obvious difference in hardness and outburst hazards selected as the research objects, the morphological characteristics of a sample particle size such as the Rosin-Rammler distribution function, average particle size, cumulative mass distribution, and mechanical parameters such as particle strength and F value were statistically analyzed through drill cuttings related to sampling points at different positions of faults already known. …”
    Get full text
    Article
  7. 347
  8. 348

    Experimental study and field application of hydraulic flushing technology in soft coal seam by Xun Zhao, Bei Hu, Baisheng Nie, Xianfeng Liu, Dan Zhao, Hongsheng Li, Chuan Deng, Zhengpeng Duan

    Published 2025-01-01
    “…Abstract To enhance the safety of coal mining operations and improve the efficiency of gas extraction, hydraulic flushing technology has been widely used in low permeability coal seams. …”
    Get full text
    Article
  9. 349
  10. 350

    Multistage identification method for real-time abnormal events of streaming data by Hao Luo, Kexin Sun, Junlu Wang, Chengfeng Liu, Linlin Ding, Baoyan Song

    Published 2019-12-01
    “…Coal mine micro-seismic signal is of great importance in the investigation of vibration characteristic, attenuation law, and disaster assessment of coal mine disasters. …”
    Get full text
    Article
  11. 351
  12. 352
  13. 353
  14. 354

    Study on Prediction of Coal-Gas Compound Dynamic Disaster Based on GRA-PCA-BP Model by Kai Wang, Kangnan Li, Feng Du

    Published 2021-01-01
    “…The intensity and depth of China’s coal mining are increasing, and the risk of coal-gas compound dynamic disaster is prominent, which seriously restricts the green, safe, and efficient mining of China’s coal resources. …”
    Get full text
    Article
  15. 355

    Study on the Support System Mechanism of Entry Roof with Roof Cutting Pressure Releasing Gob-Side Entry Retaining Technology by Xingen Ma, Guihe Li, Haitao Cao, Haijun Wang, Xiangyuan Shi, Qingquan Zhao, Zhengcan Han, Tianyi Zhang, Weiping Dai, Jiangling Zhang

    Published 2022-01-01
    “…Then, taking 8304 working face of Tashan Coal Mine as an example, the stress distribution characteristics of the surrounding rock in different entry retaining stages are simulated by numerical simulation, which provides an important reference for the field support design and puts forward an idea of hierarchical support. …”
    Get full text
    Article
  16. 356
  17. 357
  18. 358
  19. 359
  20. 360

    Research on the Deformation Characteristics and Support Technology of a Bottom Gas Extraction Roadway under Repeated Interference by Rongkun Pan, Zhihui Ma, Minggao Yu, Shuaidong Wu

    Published 2019-01-01
    “…After onsite observation of the bottom gas extraction roadway of the 12030 coal mining face of the Pingbao Coal Mine, it is concluded that the deformation characteristics of the bottom gas extraction roadway basically conform to the abovementioned equations and that the support is effective. …”
    Get full text
    Article