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Mechanical mechanism analysis of rockburst in deep-buried tunnel with high in-situ stress [PDF]

open access: yesScientific Reports
The Qinling water conveyance tunnel has a large buried depth and high in-situ stress level, and rockburst disasters frequently occurred during excavation.
Chao Zhou   +4 more
doaj   +4 more sources

Development of Rockburst Research: A Comprehensive Review

open access: yesApplied Sciences, 2022
Rockburst is a difficult problem in underground resource development and infrastructure construction. With scientific and technological progress, more research technologies and methods to prevent rockburst have been proposed and applied. Research content
Meng Wu   +3 more
doaj   +3 more sources

Mechanism analysis and type determination of the rockburst of the Gaoloushan tunnel based on a study of rockburst fragments

open access: yes工程科学学报, 2023
The Gaoloushan Tunnel is a control project for Longnan city and Jiuzhaigou, Sichuan Province. With the characteristics of "three high and one large," this project is a typical representative of a deeply buried, long highway tunnel under complex ...
Xiao-ming SUN   +8 more
doaj   +2 more sources

Study on the Mechanism of Rockburst Induced by Tidal Force

open access: yesTaiyuan Ligong Daxue xuebao, 2021
According to the statistical analysis of the time and region of rockburst, it is found that the time and region of rockburst have a certain correlation with the change of tidal force.
Gaochuan GUO, Yongkang YANG
doaj   +2 more sources

Rockburst mechanism research and its control

open access: yesInternational Journal of Mining Science and Technology, 2018
A new rockburst classification, innovative works in developing a “strainburst test machine” and an “impact-induced rockburst test machine” that can reproduce rockbursts in laboratory were researched. New concepts were proposed regarding the stress paths that take into account both the static and dynamic stresses analogous to that at excavation ...
Dongqiao Liu, Manchao He, Fuqiang Ren
exaly   +3 more sources

Analysis of rockburst mechanism and warning based on microseismic moment tensors and dynamic Bayesian networks

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
One of the major factors inhibiting the construction of deep underground projects is the risk posed by rockbursts. A study was conducted on the access tunnel of the Shuangjiangkou hydropower station to determine the evolutionary mechanism of ...
Haoyu Mao   +6 more
doaj   +3 more sources

Rockburst Precursors and the Dynamic Failure Mechanism of the Deep Tunnel: A Review [PDF]

open access: yesEnergies, 2021
With the rapid development of underground caverns in the fields of hydraulic engineering, mining, railway and highway, the frequency, and intensity of rockburst and dynamic instability have gradually increased, which has become a bottleneck restricting ...
Yulong Chen   +5 more
doaj   +2 more sources

A review of rockburst: Experiments, theories, and simulations

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
Rockburst is becoming a huge challenge for the utilization of deep underground space. Extensive efforts have been devoted to investigating the rockburst behavior and mechanism experimentally, theoretically, and numerically.
Manchao He   +3 more
doaj   +3 more sources

Rockburst mechanism in soft coal seam within deep coal mines

open access: yesInternational Journal of Mining Science and Technology, 2017
A number of rockburst accidents occurring in soft coal seams have shown that the rockburst mechanism involved in soft coal seams is significantly different from that involved in hard coal seams.
Junfei Zhang   +4 more
doaj   +3 more sources

Stress Deflection Effect and Rockburst Mechanism in Staggered Roadways Beneath “L-Shaped” Residual Pillar [PDF]

open access: yesSensors
Frequent rockbursts in staggered roadways beneath residual coal pillars pose a critical challenge for the slice mining of ultra-thick coal seams. Taking the LW250101-2 of Huating Coal Mine as a case study, this paper systematically reveals the stress ...
Qiang Lu   +7 more
doaj   +2 more sources

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