Evaluation of rockburst proneness considering specimen shape by storable elastic strain energy
岩爆倾向性研究取得新进展
Song Luo, Fengqiang Gong
发布时间：2022-12-08
Numerical simulation of zonal disintegration of surrounding rock in the deep-buried chamber
SU模型模拟分区破裂影响规律，有力揭示深埋围岩失稳机制
Yukai Wang, Xiaoli Liu, Yanlin Xiong
发布时间：2022-12-08
Potential triggers for large earthquakes in open-pit mines: A case study from Kuzbass, Siberia
Gevorg Kocharyan, Chengzhi Qi, Svetlana Kishkina, Vladimir Kulikov
发布时间：2023-01-06
关键词：anthropogenic impact, Coulomb stress variations, fault, induced seismicity,open pits
摘要： By measuring seismic vibrations at different quarries and mines in Russia, the dynamic effect at the supposed depth of the source occurrence could be reliably estimated. As is shown, the ultimate anticipated dynamic deformations are noticeably lower than corresponding values produced by seismic waves of distant earthquakes in the case when the effects of dynamic triggering were observed. Accordingly, the seismic effect of explosions cannot trigger a large earthquake with deep source occurrence. Operations in open-pit mines can only bring forward the moment of an earthquake at a potentially seismogenic fault. At the same time, the numerical calculations reveal that a branching network of underground tunnels located at several horizons can noticeably reduce the effective shear modulus of the host rock. This effect can even provoke a dynamic movement at a previously aseismic fault.
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