Showing 661 - 680 results of 954 for search '"Coal mining"', query time: 0.06s Refine Results
  1. 661

    The Importance of Physiochemical Processes in Decarbonisation Technology Applications Utilizing the Subsurface: A Review by Ieva Kaminskaite, Sandra Piazolo, Andy R. Emery, Nicholas Shaw, Quentin J. Fisher

    Published 2022-12-01
    “…For example, geothermal energy may be extracted from hot water contained or injected into deep reservoirs and disused coal mines; CO2 may be stored within depleted petroleum reservoirs and deep saline aquifers; nuclear waste may be disposed of within mechanically stable impermeable strata; surplus heat may be stored within shallow aquifers or disused coal mines. …”
    Get full text
    Article
  2. 662

    Failure Mechanism and Stability Control of Surrounding Rock of Docking Roadway under Multiple Dynamic Pressures in Extrathick Coal Seam by Xiangye Wu, Shuai Wang, Chen Tian, Changxing Ji, Jingya Wang

    Published 2020-01-01
    “…Under the geological environment of No. 16 extrathick coal seam in the Laoshidan coal mine and taking the working face 031604 as the research background, the reasonable docking position selection of the withdrawal roadway and the docking roadway in the middle mining period and the surrounding rock stability control problems of the withdrawal roadway and the docking roadway during the final mining period were studied by using the methods of field theoretical analysis, numerical simulation, and field measurement. …”
    Get full text
    Article
  3. 663

    Mechanism of Fire Prevention with Liquid Carbon Dioxide and Application of Long-Distance Pressure-Holding Transportation Technology Based on Shallow Buried and Near-Horizontal Goaf... by Naifu Cao, Yuntao Liang

    Published 2021-01-01
    “…Taking the Huojitujing well of Daliuta Coal Mine in Shendong mining area as the industrial test site, an intelligent pressure-holding transportation of liquid CO2 in the 1000 m transportation pipeline was developed. …”
    Get full text
    Article
  4. 664
  5. 665

    Characteristics of Stratum Structure and Fracture Evolution in Stratified Mining of Shallow Buried High-Gas-Thick Coal Seam by Similarity Simulation by Qin Guangpeng, Cao Jing, Wang Chao, Wu Shuo, Zhai Minghua

    Published 2021-01-01
    “…The main coal seam thickness of Rujigou Coal Mine exceeds 20 m, due to the high gas content of the coal seam, it is prone to spontaneous combustion, and the stratified mining method is adopted. …”
    Get full text
    Article
  6. 666

    Control and Application of Terrain Curvature on Dynamic Disasters: A Case Study of Coal and Gas Outbursts in the Pingdingshan Mining Area, China by Dequan Sun, Ying Chen, Xiaoyan Li, Chunhui Huang, Huairui Su, Rujiao Chen

    Published 2021-01-01
    “…By using the N-shaped landform in the Pingdingshan coal mine as a case study, an area having strong tectonic activity and coal and gas outbursts was recorded to occur where terrain curvature changed, notably occurring where the positive curvature radius was 80.21% of the total. …”
    Get full text
    Article
  7. 667

    The Materialization Characteristics and Ratio of a New Soil Paste Filling Material by Zhi Wang, Weijian Yu, Fangfang Liu

    Published 2020-01-01
    “…The test results show that the optimal ratio of the new paste filling material in the coal mine is the quality ratio of coal zircon: red soil: cement as 6 : 2 : 1, and the slurry concentration is 80%, which can not only meet the transportation requirements required by the filling process but also reduce the cost of filling, and with the extension of the maintenance age, the filling material produces more gel products, and the overall structure is more encrypted.…”
    Get full text
    Article
  8. 668

    Does Corporate Reputation Affect Safety Climate in Mining Operations? The Mediating Role of Perceived Ethical Climate by Ahmet Akar, Adem Öğüt, Filiz Demir

    Published 2023-11-01
    “…In this context, a field study was conducted on the employees of a subsurface coal mine operating in the Ermenek District of Karaman Province. …”
    Get full text
    Article
  9. 669

    Novel Energy-Efficient Miner Monitoring System with Duty-Cycled Wireless Sensor Networks by Peng Guo, Tao Jiang, Kui Zhang

    Published 2012-01-01
    “…In this paper, we propose a localization-MAC codesign approach for the monitoring system under the environment of coal mine. With the proposed approach, the system can achieve higher localization accuracy with low energy consumption and transmission delay, compared with existing range-free localization methods for sensor nodes.…”
    Get full text
    Article
  10. 670

    Study on Influence Laws of Strata Behaviors for Shallow Coal Seam Mining beneath Gully Terrain by Zhiqiang Wang, Jingkai Li, Chao Wu, Wenyu Lv, Jiao Zhang, Peng Wang, Zhen Li, Hengzhe Qu

    Published 2021-01-01
    “…Taking 3302 mining face of Zhujiamao Coal Mine as the engineering background, the laws of strata behaviors for shallow coal seam mining beneath gully terrain are studied by field detection, theoretical analysis, and numerical simulation. …”
    Get full text
    Article
  11. 671

    Application of Functional Link Artificial Neural Network for Prediction of Machinery Noise in Opencast Mines by Santosh Kumar Nanda, Debi Prasad Tripathy

    Published 2011-01-01
    “…The case study is based on data collected from an opencast coal mine of Orissa, India. From the present investigations, it could be concluded that the FLANN model give better noise prediction than the PPN and LeNN model.…”
    Get full text
    Article
  12. 672

    Theory and Application of Gob-Side Entry Retaining in Thick Three-Soft Coal Seam by Junchao Shen, Ying Zhang

    Published 2021-01-01
    “…In this paper, based on the geological conditions of a coal mine in China, we propose a novelty approach of GER in thick three-soft coal seam (it means a single seam with a soft roof and a soft floor). …”
    Get full text
    Article
  13. 673

    Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring by Baihui Ren, Jianjun Shen, Weitao Liu, Yingying Hu, Qing Cao

    Published 2021-01-01
    “…In this study, 16 groups of tests were designed by the orthogonal test method, and a PU grouting material was prepared, which can be used for the construction of sealing wall in mined-out area of coal mine. The basic properties of the material were measured. …”
    Get full text
    Article
  14. 674

    Accurate Fit and Thermochemical Analysis of the Adsorption Isotherms of Methane in Zeolite 13X by Mario Llano-Restrepo

    Published 2010-08-01
    “…The recovery of methane from landfill gases and coal mines has become of the utmost importance because methane has a global-climate warming potential much higher than that of carbon dioxide. …”
    Get full text
    Article
  15. 675

    Stochastic Generation of Subsurface Profiles for Realistic Simulation of Through-the-Earth Communication Systems by Josua Daniel Pena Carreno, A. Judson De Barros Braga

    Published 2019-01-01
    “…This model can be used to estimate link budget for TTE communication in coal mines.…”
    Get full text
    Article
  16. 676

    Geological Structure Exploration of Karst Collapse Column and Evaluation of Water Insulation Properties of the Mud Part by Shijian Yu, Jiyang Liu, Peng Bai, Hongtao Xu, Runshan He, Yongshen Wang, Dawei Yin

    Published 2021-01-01
    “…In this study, the X5 KCC in Shiquan Coal Mine was investigated by means of controlled source audio magnetotelluric exploration and borehole television. …”
    Get full text
    Article
  17. 677

    Supporting Technology Research in Deep Well Based on Modified Terzaghi Formula by Wen-qing Peng, Wei-jun Wang, Chao Yuan

    Published 2018-01-01
    “…In order to solve the difficult problem of supporting roadway with large cross section and broken surrounding rock, the large-section inclined shaft of Pingdingshan Coal Mine is taken as the research instance. In this paper, a modified formula for the Terzaghi ultimate bearing capacity of a foundation is established based on rock mass strength criteria. …”
    Get full text
    Article
  18. 678

    Control of Water Inrush from Longwall Floor Aquifers Using a Division Paste Backfilling Method by Qingliang Chang, Xingjie Yao, Shiguo Ge, Ying Xu, Yuantian Sun

    Published 2021-01-01
    “…Aiming at the problem of the safety mining problems of longwall paste filling working face under buildings on high confined water in the Daizhuang Coal Mine, the paste filling mining method was used. …”
    Get full text
    Article
  19. 679

    A Case Study of Damage Energy Analysis and an Early Warning by Microseismic Monitoring for Large Area Roof Caving in Shallow Depth Seams by Like Wei, Qingxin Qi, Hongyan Li, Bin Zhang, Yongren Wang, Linghai Kong

    Published 2015-01-01
    “…The field application showed that the early warning method had avoided miners suffering from all support crushing accidents in Shigetai coal mine.…”
    Get full text
    Article
  20. 680

    Application of Distributed Optical Fiber Technology for Coal Bump Prevention by Han Liang, Jun Han, Zuoqing Bi

    Published 2021-01-01
    “…The 8939 working face in Xinzhouyao coal mine is a high coal bump proneness panel. For coal bump prevention, rib holes are drilled for pressure relief purpose. …”
    Get full text
    Article