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https://doi.org/10.17559/TV-20160815152017

Analysis of fractal characteristic of fragments from rock burst tests under different loading rates

Bao-zhu Tian ; College of Resources and Civil Engineering, Northeastern University, No. 3-11, Wenhua Road, Shenyang, 110819, P. R. China
Shan-jun Liu ; College of Resources and Civil Engineering, Northeastern University, No. 3-11, Wenhua Road, Shenyang, 110819, P. R. China
Yan-bo Zhang ; North China University of Science and Technology, 46 Xinhua Road, Tangshan, 063009, P. R. China
Zhan-le Wang ; Electronic Systems Engineering, University of Regina, Regina S4S0A2, Canada

Puni tekst: engleski, pdf (3 MB) str. 1269-1276 preuzimanja: 292* citiraj
APA 6th Edition
Tian, B., Liu, S., Zhang, Y. i Wang, Z. (2016). Analysis of fractal characteristic of fragments from rock burst tests under different loading rates. Tehnički vjesnik, 23 (5), 1269-1276. https://doi.org/10.17559/TV-20160815152017
MLA 8th Edition
Tian, Bao-zhu, et al. "Analysis of fractal characteristic of fragments from rock burst tests under different loading rates." Tehnički vjesnik, vol. 23, br. 5, 2016, str. 1269-1276. https://doi.org/10.17559/TV-20160815152017. Citirano 16.05.2021.
Chicago 17th Edition
Tian, Bao-zhu, Shan-jun Liu, Yan-bo Zhang i Zhan-le Wang. "Analysis of fractal characteristic of fragments from rock burst tests under different loading rates." Tehnički vjesnik 23, br. 5 (2016): 1269-1276. https://doi.org/10.17559/TV-20160815152017
Harvard
Tian, B., et al. (2016). 'Analysis of fractal characteristic of fragments from rock burst tests under different loading rates', Tehnički vjesnik, 23(5), str. 1269-1276. https://doi.org/10.17559/TV-20160815152017
Vancouver
Tian B, Liu S, Zhang Y, Wang Z. Analysis of fractal characteristic of fragments from rock burst tests under different loading rates. Tehnički vjesnik [Internet]. 2016 [pristupljeno 16.05.2021.];23(5):1269-1276. https://doi.org/10.17559/TV-20160815152017
IEEE
B. Tian, S. Liu, Y. Zhang i Z. Wang, "Analysis of fractal characteristic of fragments from rock burst tests under different loading rates", Tehnički vjesnik, vol.23, br. 5, str. 1269-1276, 2016. [Online]. https://doi.org/10.17559/TV-20160815152017
Puni tekst: hrvatski, pdf (3 MB) str. 1269-1276 preuzimanja: 279* citiraj
APA 6th Edition
Tian, B., Liu, S., Zhang, Y. i Wang, Z. (2016). Analiza fraktalnih karakteristika krhotina kod ispitivanja rasprsnuća stijene pri različitim stupnjevima opterećenja. Tehnički vjesnik, 23 (5), 1269-1276. https://doi.org/10.17559/TV-20160815152017
MLA 8th Edition
Tian, Bao-zhu, et al. "Analiza fraktalnih karakteristika krhotina kod ispitivanja rasprsnuća stijene pri različitim stupnjevima opterećenja." Tehnički vjesnik, vol. 23, br. 5, 2016, str. 1269-1276. https://doi.org/10.17559/TV-20160815152017. Citirano 16.05.2021.
Chicago 17th Edition
Tian, Bao-zhu, Shan-jun Liu, Yan-bo Zhang i Zhan-le Wang. "Analiza fraktalnih karakteristika krhotina kod ispitivanja rasprsnuća stijene pri različitim stupnjevima opterećenja." Tehnički vjesnik 23, br. 5 (2016): 1269-1276. https://doi.org/10.17559/TV-20160815152017
Harvard
Tian, B., et al. (2016). 'Analiza fraktalnih karakteristika krhotina kod ispitivanja rasprsnuća stijene pri različitim stupnjevima opterećenja', Tehnički vjesnik, 23(5), str. 1269-1276. https://doi.org/10.17559/TV-20160815152017
Vancouver
Tian B, Liu S, Zhang Y, Wang Z. Analiza fraktalnih karakteristika krhotina kod ispitivanja rasprsnuća stijene pri različitim stupnjevima opterećenja. Tehnički vjesnik [Internet]. 2016 [pristupljeno 16.05.2021.];23(5):1269-1276. https://doi.org/10.17559/TV-20160815152017
IEEE
B. Tian, S. Liu, Y. Zhang i Z. Wang, "Analiza fraktalnih karakteristika krhotina kod ispitivanja rasprsnuća stijene pri različitim stupnjevima opterećenja", Tehnički vjesnik, vol.23, br. 5, str. 1269-1276, 2016. [Online]. https://doi.org/10.17559/TV-20160815152017

Sažetak
Rock burst is a common serious geological hazard in underground engineering, which seriously affects the progress of projects. The mechanism of rock burst can be explained by the distribution law of rock fragments and its fractal characteristics. A simulation experiment of rock burst was conducted with the granite samples under a biaxial loading machine system to analyze the fractal characteristics of the fragments from rock burst tests. The granite fragments were collected and divided into coarse, medium, fine, and micro grains by a screening method. The number and mass distribution of the fragments in different size ranges were also analyzed. The fractal dimensions of the rock fragments were calculated by the mass-granularity distribution method. Results show that the loading rate is proportional to the damage degree of rock burst; the mass of rock burst debris increases with the increase in loading rate, which indicates that a high loading rate leads to considerable rock damage. A high loading rate also results in small proportions of fine and medium grains and a large proportion of coarse grain, with no significant change in the micro grain. Under the high-loading-rate condition, the fractal dimensions of rock fragments are small, but the released energy of rock burst is large. The conclusions obtained in this study confirm the feasibility of reducing the risk of rock burst by adjusting the excavation rate in engineering practice and provide the basis for further study on the mechanism of rock burst.

Ključne riječi
fractal dimension; fragments; loading rate; rock burst; rock mechanics

Hrčak ID: 167483

URI
https://hrcak.srce.hr/167483

[hrvatski]

Posjeta: 996 *