A characteristic energy factor for deformation and failure of deep rock masses and its application

CHEN Haoxiang; WANG Mingyang; LI Jie

doi:10.11883/bzycj-2019-0191

Volume 39 Issue 8

Aug. 2019

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CHEN Haoxiang, WANG Mingyang, LI Jie. A characteristic energy factor for deformation and failure of deep rock masses and its application[J]. Explosion And Shock Waves, 2019, 39(8): 081103. doi: 10.11883/bzycj-2019-0191

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CHEN Haoxiang, WANG Mingyang, LI Jie. A characteristic energy factor for deformation and failure of deep rock masses and its application[J]. Explosion And Shock Waves, 2019, 39(8): 081103. doi: 10.11883/bzycj-2019-0191

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A characteristic energy factor for deformation and failure of deep rock masses and its application

doi: 10.11883/bzycj-2019-0191

State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing, 210007, Jiangsu, China

Received Date: 2019-05-05
Rev Recd Date: 2019-06-28

Available Online: 2019-07-25

Publish Date: 2019-08-01

Abstract

Abstract

As high elastic strain energy is stored in deep rock masses with high geo-stress, the initial equilibrium state in rock masses is broken as a result of excavation and explosion, thus forming the unbalanced force and energy field forms. The deformation and fracture of rock masses exhibit remarkable nonlinearity, such as zonal disintegration, large deformation, rockburst and artificial earthquake, under the combination of unbalanced force field and disturbance of dynamic loads, which leads to the special stress state for the deep rock masses. The classic continuum theory does not consider the natural discrete and energetic characteristics, and therefore cannot describe the nonlinear mechanical behavior of deep rock masses. Combining statistical physics, the characteristic energy factor provides a powerful theoretical proof for studying the deformation and fracture process of deep rock masses under the action of dynamic and static loading. In this paper, the characteristic energy factor is introduced briefly and its applications in engineering disasters such as zonal disintegration and irreversible deformation are reviewed.
- deep rock masses,
- structural hierarchies,
- energetic features,
- potential and disturbing fields,
- engineering disaster

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References

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