Stability Analysis of Surrounding Rock of Large Section Ultradeep Shaft Wall [PDF]
, 2021 In order to study the stability of deep surrounding rock during the excavation of new main shaft in Xincheng gold mine, a construction method suitable for large section ultradeep shaft is proposed.
Wang Chunlong +3 more
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Stabilization of Rock Roadway under Obliquely Straddle Working Face
Energies, 2021 A floor rock roadway under an oblique straddle working face is a typical dynamic pressure roadway. Under the complex disturbance of excavation engineering works, the roadway often undergoes stress concentration and severe deformation and damage. To solve
Peng Wang +4 more
doaj +1 more source
Tunnel surrounding rock stability prediction using improved KNN algorithm [PDF]
, 2020 Accurate prediction of the stability of rock surrounding a tunnel is important in order to prevent from rock collapse or reduce the hazard to personnel and traffic caused by such incidents.
Wengang Liu +3 more
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Stability Analysis of the Surrounding Rock-Lining Structure in Deep-Buried Hydraulic Tunnels Having Seepage Effect [PDF]
, 2022 To clarify the factors affecting the stability of deep-buried hydraulic tunnels containing pore water, the elastoplastic theory and the Mogi-Coulomb strength criterion were used to derive the analytical solutions of stress on the surrounding rock-lining ...
Juncai Xu +3 more
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Study on instability failure mode and monitoring early warning standard of surrounding rock in fully weathered argillaceous sandstone section of large section tunnel [PDF]
E3S Web of Conferences, 2019 Based on the special geological conditions of a tunnel in Qingyuan section of Huizhou-Zhanzhou Expressway, FLAC3d numerical simulation software is used to simulate the rheological properties and instability of surrounding rock in large-section fully ...
Zhao Ming +3 more
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Buckling failure of highly-stressed hard rocks surrounding deep underground openings and confining effects of backfilling material [PDF]
, 2012 The buckling failure of highly-stressed hard rocks surrounding deep underground openings is analyzed in this paper. The effects of the eccentricity of maximum tangential stress and the radial stress gradient are considered in the analysis.
Li, X. B. +5 more
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Advances in Materials Science and Engineering, 2022 Granite is a common brittle rock material in underground surrounding rock, such as Yebatan Hydropower Station. The underground cavern of Yebatan Hydropower Station has characteristics of large span, high ground stress, fault development, and abundant ...
Xiaolong Li +3 more
doaj +1 more source
Complex Analytical Study of the Stability of Tunnel-Surrounding Rock in a Layered Jointed Rock Mass [PDF]
Mathematical Problems in Engineering, 2020 A barrier function method based on the fmincon optimization function in MATLAB was used to determine the function to map a tunnel boundary to the unit circle in the complex plane, and a structural failure criterion of the mapping convergence was established based on the reliability theory of underground engineering.
Su Wu +6 more
openaire +2 more sources
Shock and Vibration, 2022 Combined with specific engineering examples, the spatial disturbance influence characteristics and laws of the surrounding rock stress in the staggered roadways are analyzed by numerical simulation.
Qingwei Bu +3 more
doaj +1 more source
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
doaj +1 more source