A numerical study of spalling under different dynamic loads using pnmm

X. Li, Q. B. Zhang, J. Zhao, J. C. Li

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

1 Citation (Scopus)

Abstract

Rock spalling is found to be closely related to strain bursting, the most common type of rockburst. In this paper, the spalling failure of long rock bars under different dynamic loads is numerically investigated using a particle-based numerical manifold method (PNMM). The thickness of the first and following spall pieces are studied. The values of spall strength at high loading rates are successfully simulated. The spalling patterns under decreasing, increasing, and symmetrical triangular waves are discussed and compared. Simulation results are valuable when considering the potential spalling failure of underground construction.

Original languageEnglish
Title of host publicationRock Dynamics – Experiments, Theories and Applications - Proceedings of the 3rd International Conference on Rock Dynamics and Applications, ROCDYN-3 2018
EditorsXing Li, Charlie C. Li, Zong-Xian Zhang
PublisherCRC Press
Pages299-304
Number of pages6
ISBN (Print)9780815396673
Publication statusPublished - 1 Jan 2018
EventInternational Conference on Rock Dynamics and Applications (RocDyn) 2018 - Trondheim, Norway
Duration: 25 Jun 201829 Jun 2018
Conference number: 3rd

Conference

ConferenceInternational Conference on Rock Dynamics and Applications (RocDyn) 2018
Abbreviated titleRocDyn 2018
CountryNorway
CityTrondheim
Period25/06/1829/06/18

Cite this

Li, X., Zhang, Q. B., Zhao, J., & Li, J. C. (2018). A numerical study of spalling under different dynamic loads using pnmm. In X. Li, C. C. Li, & Z-X. Zhang (Eds.), Rock Dynamics – Experiments, Theories and Applications - Proceedings of the 3rd International Conference on Rock Dynamics and Applications, ROCDYN-3 2018 (pp. 299-304). CRC Press.