[1] Ma Zhitao, Tan Yunliang, Zhang Ting,. Modeling of rock failure based on physical cellular automata [J]. Journal of Southeast University (English Edition), 2005, 21 (3): 348-352. [doi:10.3969/j.issn.1003-7985.2005.03.020]

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Modeling of rock failure based on physical cellular automata()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

21

Issue:

2005 3

Page:

348-352

Research Field:

Civil Engineering

Publishing date:

2005-09-30

Info

Title:

Modeling of rock failure based on physical cellular automata

Author(s):

Ma Zhitao¹;  Tan Yunliang²;  Zhang Ting¹

¹ Geotechnical Research Institute, Hohai University, Nanjing 210098, China
² College of Resources and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266510, China

Keywords:

rock failure;  acoustic emission;  heterogeneous characteristic;  physical cellular automata;  Weibull distribution

PACS:

TU452

DOI:

10.3969/j.issn.1003-7985.2005.03.020

Abstract:

To analyze the effects of heterogeneous material characteristics on rock failure, a micro-heterogeneous physical cellular automata(Mh-PCA)model is introduced according to the cellular automata theory from a general power view.In this model, the neighbor is the Moore pattern and the Weibull distribution is adopted to simulate the rock heterogeneousness.Using this model, the evolvements and acoustic emission of rock failure are simulated for four materials of different degree of homogeneousness(m=1, 5, 10, 15).The results show that the heterogeneous characteristic has a great effect on the rock failure, the more the homogeneousness, the fewer the crack branches and the more concentrated acoustic emissions.The physical cellular automata theory gives a new idea for studying rock failure.

References:

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[4] Nakanishi Hiizu.Cellular-automata of earthquakes with deterministic dynamics [J].Physical Review A, 1990, 41(12):7086-7089.
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[6] Liu Guiping.A cellular automaton model of seismicity [J]. Northwestern Seismological Journal, 1995, 17(2):20-25.(in Chinese)
[7] Li Youming.Application of cellular automata approach to the study of seismic wave propagation [J].Acta Phys Sin, 1995, 38(5):651-661.(in Chinese)
[8] Hu J X.A study of the cellular automata modeling for P wave propagation in complex media[J].Acta Phys Sin, 1997, 40(1):120-126.(in Chinese)
[9] Tan Yunliang, Zhou Hui.Physical cellular automaton theory for simulating the failure progress of micro-heterogeneous material [J].Acta Phys Sin, 2001, 50(4):704-709.(in Chinese)
[10] Zhou Hui, Wang Yongjia, Tan Yunliang, et al.Study on physical cellular automata model of rock mass failure(Ⅰ)—basic model [J].Chinese Journal of Rock Mechanics and Engineering, 2002, 21(4):475-478.(in Chinese)
[11] Zhou Hui, Tan Yunliang, Feng Xiating, et al.Study on physical cellular automata model of rock mass failure(Ⅱ)—examples[J].Chinese Journal of Rock Mechanics and Engineering, 2002, 21(6):782-786.(in Chinese)
[12] Sun J Z, Zhou J.The factors affect the acoustic emission of rock [J].Lithosphere Deformation and Earthquake, 1997, 17(2):2-5.(in Chinese)

Memo

Memo:

Biography: Ma Zhitao(1974—), male, graduate, mzt123@sina.com.

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