Numerical Study on Crack Propagation in Brittle Jointed Rock Mass Influenced by Fracture Water Pressure
Abstract
:1. Introduction
2. An Elastic-Brittle Constitutive Model and Hydro-Mechanical Coupling
2.1. An Elastic-Brittle Constitutive Model
2.2. Hydro-Mechanical Coupling of Jointed Rock Mass
3. Implementation of the Elastic-Brittle Coupling Model in FLAC3D
4. Numerical Simulations on the Specimens Containing Precast Fissures
4.1. A Two-Dimensional Numerical Simulation
Rock types | Elastic modulus (GPa) | Poisson’s ratio | Tensile strength (MPa) | Cohesion (MPa) | Friction angle (°) | Dilatancy angle (°) |
---|---|---|---|---|---|---|
Intact rock mass | 45.0 | 0.25 | 0.9 | 1.6 | 40 | 0 |
Precast fissure | 1.5 | 0.35 | 0.5 | 0.8 | 20 | 0 |
4.2. Three-Dimensional Numerical Simulations
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
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Li, Y.; Zhou, H.; Zhu, W.; Li, S.; Liu, J. Numerical Study on Crack Propagation in Brittle Jointed Rock Mass Influenced by Fracture Water Pressure. Materials 2015, 8, 3364-3376. https://doi.org/10.3390/ma8063364
Li Y, Zhou H, Zhu W, Li S, Liu J. Numerical Study on Crack Propagation in Brittle Jointed Rock Mass Influenced by Fracture Water Pressure. Materials. 2015; 8(6):3364-3376. https://doi.org/10.3390/ma8063364
Chicago/Turabian StyleLi, Yong, Hao Zhou, Weishen Zhu, Shucai Li, and Jian Liu. 2015. "Numerical Study on Crack Propagation in Brittle Jointed Rock Mass Influenced by Fracture Water Pressure" Materials 8, no. 6: 3364-3376. https://doi.org/10.3390/ma8063364