Dynamic Pulverization of Rock Under Triaxial Static-Stress and High-Rate Shearing

Journal article

A long-term opening problem in geophysics and engineering is the generation mechanism of rock pulverization (e.g., fault gouge) within the shear zone when subjected to triaxial stress environment and dynamic loads. A novel triaxial Hopkinson bar is developed to apply quasi-static triaxial confinement and dynamic loads onto the testing rocks and to measure the energy release from the shearing zone. The results elucidate shear strain-rate threshold (i.e., over 125 s−1) for granite at the triaxi...

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Authors: Liu, K; Hu, W; Zhao, J

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Springer
• Journal: Rock Mechanics and Rock Engineering
• Volume: 57
• Issue: 7
• Pages: 4669-4678
• Publication date: 2024-03-10
• Acceptance date: 2024-01-09
• DOI: 10.1007/s00603-024-03799-5
• EISSN: 1434-453X
• ISSN: 0723-2632
• Language: English
• Keywords: Fault gouge; Confinement effect; Triaxial Hopkinson bar; Shear rupture; High strain rate loads; Earthquake