Showing 501 - 520 results of 954 for search '"Coal mining"', query time: 0.06s Refine Results
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    Experimental Study on Reasonable Spacing after Carbon Dioxide Presplitting in Low-Permeability Coal Seam by Zongyong Wei, Shugang Li, Haifei Lin, Botao Li, Yang Ding, Haiqing Shuang

    Published 2021-01-01
    “…Gas disasters have been always a major hidden danger that affects mining safety in coal mines. Gas drainage by drilling is the fundamental method of gas control in coal mines. …”
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    Difference Analysis of Disaster Types and Grading Control Technologies for Risk of Caving of Coal Roadway Roof by Jicheng Feng, Zhiheng Cheng, Hongbing Wang, Jianjun Shi, Haoyu Shi, Shuaifeng Yin

    Published 2021-01-01
    “…According to the zoning characteristics of the coal mine, a targeted support design test is carried out in the same intake airway of working face 11030 of the mine. …”
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    Research on change law of fire smoke characteristics during dynamic sealing process of mine tunnels by Chengmao HE, Yang WANG, Qingfeng ZHANG

    Published 2025-01-01
    “…In order to study the change law of smoke characteristics in the dynamic sealing process of coal mine roadway fire, FDS software was used to conduct full-scale numerical simulation of mine roadway fire, and the CO volume fraction decay rate model of roadway fire was established by scale experiment. …”
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    Study on In Situ Stress Measurement and Surrounding Rock Control Technology in Deep Mine by Zhongcheng Qin, Bin Cao, Yongle Liu, Tan Li

    Published 2020-01-01
    “…The measured data of in situ stress in the Shuanghe coal mine show that the maximum principal stress is 44.94~50.61 MPa, and the maximum principal stress direction is near horizontal direction, which belongs to tectonic stress field. …”
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    Research on Surrounding Rock Control Technology of Dongbaowei Deep Mining Roadway by Chengjia Wu, Tao Qin, Lei Wang, Zhi Liu

    Published 2021-01-01
    “…Through comparative analysis of deep roadway support plan carried out by numerical simulation, the support scheme suitable for Dongbaowei Coal Mine is put forward, which is applied in the field. …”
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    Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology by Fengnian Wang, Shizhuang Chen, Pan Gao, Zhibiao Guo, Zhigang Tao

    Published 2021-01-01
    “…In this study, the deformation characteristics and mechanical properties of coal and rock mass in the S2N5 working face of the Xiaokang coal mine are analyzed to address the problem of large deformation of soft rocks with high in situ stress surrounding roadways. …”
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    An Automatic Recognition Method of Microseismic Signals Based on S Transformation and Improved Gaussian Mixture Model by Kaikai Wang, Chun’an Tang, Ke Ma, Xintang Wang, Qiang Li

    Published 2020-01-01
    “…Firstly, the time-frequency characteristics of microseismic signals in coal mine are extracted by ST analysis. It is found that there are obvious time-frequency differences between rock-fracturing signals and blast vibration signals. …”
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