Results 141 to 150 of about 504 (182)
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Analytical and Numerical Study on the Pillar Rockbursts Mechanism
Rock Mechanics and Rock Engineering, 2005Based on cusp-type catastrophe theory, a sample rock–rock model for studying the pillar rockburst mechanism is presented in this paper. It is shown that the stiffness ratio, K, of the roof and floor to the pillar plays an important role in the outbreak of instability.
S. Y. Wang +5 more
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Mechanism and catastrophe theory analysis of circular tunnel rockburst
Applied Mathematics and Mechanics, 2006Mechanism of circular tunnel rockburst is that, when the carrying capacity of the centralized zone of plastic deformation in limiting state reduces, the comparatively intact part in rock mass unloads by way of elasticity; rockburst occurs immediately when the elastic energy released by the comparatively intact part exceeds the energy dissipated by ...
Yue Pan, Yong Zhang, Guang-ming Yu
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Destabilization mechanism and energy evolution of coal pillar in rockburst disaster
Arabian Journal of Geosciences, 2020Rockburst disaster caused by coal pillar poses a serious threat to safety production in advanced mining technology, such as the technology of gob-side entry driving, which is employed to develop the mining rate of coal. In order to reveal the rockburst mechanism of coal pillar in mines from the view of energy evolution, the bursting liability of coal ...
Yi Xue, Zhengzheng Cao, Zhenhua Li
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Buckling mechanism of pillar rockbursts in underground hard rock mining
Geomechanics and Geoengineering, 2018The objective of this paper is to investigate the buckling mechanism of pillar rockbursts in underground hard rock mines from an innovative point of view.
J. Deng, D. S. Gu
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Numerical Analysis of Induced Mechanism of Rockbursts in Tunnels
58th U.S. Rock Mechanics/Geomechanics SymposiumABSTRACT: Rockburst is a sudden and violent failure characterized by the breaking up and expulsion of rock from its surroundings. Tunnel rockbursts pose a significant threat to the safety of excavation operations, leading to property damage and tunneler casualties.
J. Deng, Y. Gong, S. Li
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A Mechanism for High Wall-rock Velocities in Rockbursts
pure and applied geophysics, 1997Considerable evidence has been reported for wall-rock velocities during rockbursts in deep gold mines that are substantially greater than ground velocities associated with the primary seismic events. Whereas varied evidence suggests that slip across a fault at the source of an event generates nearby particle velocities of, at most, several m/s ...
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The mesoscopic fracture mechanism of rockbursts under gradient stresses
Bulletin of Engineering Geology and the Environment, 2023Xiqi Liu +4 more
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Re-analysis of the rockburst mechanism and discussion on the gradation of the rockburst intensity
2022Hou Faling, Liu Xiaoming
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Exploiting the paddle-wheel mechanism for the design of fast ion conductors
Nature Reviews Materials, 2022Zhizhen Zhang, Linda F Nazar
exaly
A review of cancer immunotherapy toxicity
Ca-A Cancer Journal for Clinicians, 2020Lucy Boyce Kennedy
exaly