Numerical Simulation of Coal Mining Excavation Based on Discontinuous Deformation Analysis

Ya Nan Gao; Feng Gao; M.R. Yeung; Qing Hui Jiang

doi:10.4028/www.scientific.net/AMM.138-139.187

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 138-139Numerical Simulation of Coal Mining Excavation...

Numerical Simulation of Coal Mining Excavation Based on Discontinuous Deformation Analysis

Abstract:

The movement and deformation of rock stratum occur when the excavation is carries out during the underground mining process. Rock is a continuous-discontinuous material so the continuum mechanics method may not handle the rock problem well. The discontinuous deformation analysis (DDA) method which discretizes the rock mass to block system can describe the large displacement and deformation of rock blocks, especially the rock stratum collapse. The DDA was employed in this paper to analysis a mining excavation process. The displacement field and stress field of rock stratum was computed. The result shows that the DDA can handle the mining excavation and the rock stratum movement and deformation problem well.

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Periodical:

Applied Mechanics and Materials (Volumes 138-139)

Pages:

187-192

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.138-139.187

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Online since:

November 2011

Authors:

Ya Nan Gao, Feng Gao, M.R. Yeung, Qing Hui Jiang

Keywords:

Discontinuous Deformation Analysis (DDA), Displacement Field, Mining Excavation

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References

[1] M.G. Qian: Journal of China Coal Society Vol. 35 (2010), p.529.

Google Scholar

[2] B.M. Shi and Z.G. Liu: Journal of China Coal Society Vol. 33 (2008), p.17.

Google Scholar

[3] X.D. Liao and M.Z. Gao: J. Min. Safety. Eng. Vol. 25 (2008), p, 226.

Google Scholar

[4] X.M. Sun and M.C. He. J. Chinese Univ. Min. Tech. Vol. 34 (2005), p, 166.

Google Scholar

[5] R. Hughes, H.S. Mitri and E. Lecomte, in: Proceedings of 44nd U.S. Rock Mechanics Symposium and 5nd U.S. -Canada Rock Mechanics Symposium, Salt Lake City, UT, USA, June 27-June 30, 2010, edited by J. Mclennan, Omnipress, Madison (2010).

Google Scholar

[6] Y. Ju, Z.J. Ping, Z.D. Song, L.L. Tian, H.W. Zhou: Chinese J. Geotech. Eng. Vol. 27 (2007), p.268.

Google Scholar

[7] P.A. Cundall and D.H. Hart: Numerical modeling of discontinua. Eng. Comput. 9, p.113.

Google Scholar

[8] G.H. Shi and R.E. Goodman, in: Proceedings of 25th U.S. Symposium on Rock Mechanics, Society of Mining Engineers of AIME, New York (1984), p.269.

Google Scholar

[9] G.H. Shi and R.E. Goodman: Int. J. Numer. Analyt. Meth. Geomech. Vol. 9 (1985), p, 541.

Google Scholar