Results 31 to 40 of about 26,903 (228)
Stability Classification of Roadway Surrounding Rock Cased on Fuzzy Comprehensive Evaluation
International Journal of Energy, 2023 In order to effectively predict the stability of roadway surrounding rock, a reasonable and effective support scheme was proposed. Fuzzy clustering analysis was introduced to classify the stability of roadway surrounding rock. Based on the data processing of 7 classification indexes, the weight and subordination degree of surrounding rock indexes of ...
Bingbing Shu +3 more
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Geofluids, 2022 Aiming at the characteristics of large deformation and long deformation time under the mining influence of the 2254 east floor roadway surrounding rock, which under the condition of complex coal occurrence in Jiahe Mine.
Hai Wu +5 more
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Analysis of Influence of Stress Lode Angle on Stability of Roadway Surrounding Rock
Shock and Vibration, 2021 Based on the variation range of the stress lode angle, the in situ rock stress is divided into σv-type stress field, σH-type stress field, and σh-type stress field.
Yihong Liu +5 more
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矿业科学学报, 2017 The distribution of plastic zone of surrounding rock in deep mining roadway is the key to control the stability of surrounding rock. Taking the deep mining roadway of Xingdong Mine as the research background, according to the "butterfly-shaped" plastic ...
Li Yongen +4 more
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Shock failure mechanism of roadway in extra thick coal seam and full anchor cable support technology
Meitan xuebao, 2023 In view of the serious shock failure of roadway in extra thick coal seam, based on elastic mechanics and shock dynamics, this paper studies the shock failure mechanism of roadway in extra-thick coal seam, reveals the main influencing factors of roof coal
Mingshi GAO +4 more
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Analysis of the impact of the combined use of rebar bolts and FRP bolts in the roadway enclosure
Scientific Reports, 2023 In order to investigate the support effect of the combination of FRP bolts and rebar bolts in the roadway, taking a coal mine as the background of the project, research and analysis of the engineering geological conditions of the mine and the layout of ...
Jinguo Lyu +5 more
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Control theory of uniform strength support in deep roadway
矿业科学学报, 2021 In this paper, a large number of coal mine roadway failure cases are investigated, and 6 types and 15 typical failure forms are extracted.The mechanical characteristics and stress distribution of surrounding rock of typical roadway shapes such as ...
Zuo Jianping +4 more
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Advances in Civil Engineering, 2021 In order to effectively solve a series of problems such as the difficulty of coal and rock interbed roadway support in Gaojiazhuang Coal Mine and get a scientific and reasonable optimization scheme of surrounding rock support, theoretical analysis ...
Chaolin Liu, Guohua Zhang
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Deformation Failure and Support Test of Surrounding Rock in Deep Arched Roadway with Straight Wall
Advances in Civil Engineering, 2021 The deformation and failure of the uphill roadway on the 3rd horizontal track in the No. 6 Mine of Pingdingshan Coal Group was taken as the engineering background.
Shuqi Pan +4 more
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Research on Displacement Failure Characteristics of Deep Roadway Surrounding Rock
IOP Conference Series: Earth and Environmental Science, 2020 Abstract In order to explore the displacement failure characteristics of deep roadway surrounding rock, the surrounding rock stress field model of the uniform stress field in the circular tunnel is simplified. It analyzes the stress evolution features of deep coal rock and discusses the mechanism of zonal disintegration.
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