Numeric Simulation of Fracture Extension within Surrounding Rock under Continuous Excavation

Gui Lin Li; Li Wang; Yuan Chun Mao

doi:10.4028/www.scientific.net/AMM.71-78.1473

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 71-78Numeric Simulation of Fracture Extension within...

Numeric Simulation of Fracture Extension within Surrounding Rock under Continuous Excavation

Abstract:

This paper aims at progressive failure within surrounding rock under continuous excavation, such as mining, underground powerhouse building, etc. A meso-damage model is proposed, which include the damage law under complex stress state for brittle materials, and the damage evolution based on stiffness degradation. The damage model is embedded into the FEM program. To test and very the damage model, a example of continuous excavation of underground mining is simulated. The result shows that the crack field growth is in accordance with that the similar material experiment.

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Periodical:

Applied Mechanics and Materials (Volumes 71-78)

Pages:

1473-1477

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.71-78.1473

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Cite this paper

Online since:

July 2011

Authors:

Gui Lin Li, Li Wang, Yuan Chun Mao

Keywords:

Continuous Excavation, Damage Model, Fracture Extension, Numeric Simulation

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References

[1] T. Xu,C.A. Tang T.H. Yang, et al. Numerical investigation of coal and gas outbursts in underground collieries. International Journal of Rock Mechanics & Mining Sciences, 2006, (43)905~919.

DOI: 10.1016/j.ijrmms.2006.01.001

Google Scholar

[2] Tang C A，Kaiser P K. Numerical simulation of cumulative damage and seismic energy release during brittle rock failure-Part I: Fundamentals. Int J Rock Mech Min Sci1995, 35(2): 113~121.

DOI: 10.1016/s0148-9062(97)00009-0

Google Scholar

[3] Chen Y Q, Zheng X P, Yao Zhen Han. Numerical Simulation of Fracture Progresses in 3-D Heterogeneous Brittle Material. ACTA MECHANICA SINICA, 2002, 34(3): 351~363.

Google Scholar

[4] Zhou WY, Shan GR and Yang RQ （1998） Elasto-brittle damage model of rock and its applications. Chinese Journal of Geotechnical Engineering, 1998，20（5）：54~57.

Google Scholar

[5] Wang Li, Gao Qian. Elastoplastic model of damaged rock based on the strength theory. Journal of University of Science and Technology Beijing, 2008, 30(5): 1~6.

Google Scholar

[6] Qian M G, Miao X X, Xu J L. Key Stratum Theory of Stratum Control[M]. Beijing: China Mining University Press, (2002).

Google Scholar