Numerical Study on Process of Breaking Rock with TBM Cutter in Different Cutting Orders

Ji Qiu Tan; Qing Tan; Yi Min Xia; Zi Jun Xu; Xi Long Qu

doi:10.4028/www.scientific.net/AMM.34-35.1583

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 34-35Numerical Study on Process of Breaking Rock with...

Numerical Study on Process of Breaking Rock with TBM Cutter in Different Cutting Orders

Abstract:

In order to research the effect of different cutting orders on breaking mechanism of TBM cutters for the rock without joints, this paper established the simulation models of breaking rock three TBM cutters in simultaneous and sequential orders, which is based on the 2D discrete element method. A series of numerical experiments were designed and the whole process of production and propagation of crack and rock breaking was successfully simulated. The simulation results showed that the cutter order determines the breaking mode, which is carefully analyzed: The chipping stress under the sequential order is higher than simultaneous way. The chips are formed by the side cracks under the two loading modes, while the shape of the rock chip are different. The distribution of the principal stress contour is almost symmetrical in different cutting order. Finally, conclusions and future work are summarized.

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Periodical:

Applied Mechanics and Materials (Volumes 34-35)

Pages:

1583-1586

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.34-35.1583

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Online since:

October 2010

Authors:

Ji Qiu Tan, Qing Tan, Yi Min Xia, Zi Jun Xu, Xi Long Qu

Keywords:

Breaking Process, Crack Propagation, Cutting Order, Numerical Simulation, TBM Cutter

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References

[1] WU Qing-ming, ZHOU Xiao-hong, CHEN Dong etal, in: Construction Machinery. Vol. 12 (2004), pp.69-71. (In Chinese).

Google Scholar

[2] WANG Meng-shu, in: CONSTRUCTION MECHANIZATION. Vol. 28 (2007), pp.23-24. (In Chinese).

Google Scholar

[3] Lawn B R, in: Proc. Roy. Soc. Vol. A299 (1967) p.307.

Google Scholar

[4] CHEN Dan, YUAN Da-jun, ZHANG Mi. in: Modern Urban Transit. Vol. 5 (2005), pp.25-29.

Google Scholar

[5] Kou S Q, Huang Y, Tan X C, Lindqvist P A, in: Engineering Geology. Vol. 49 (1998), pp.261-269.

Google Scholar

[6] Liu H Y, S Q Kou, P a Lindqvist, C a Tang, in: International Journal of Rock Mechanics and Mining Sciences. Vol. 39 (2002) pp.491-505.

DOI: 10.1016/s1365-1609(02)00043-6

Google Scholar

[7] Gong Q M, Y Y Jiao, J Zhao, in: Tunneling and Underground Space Technology incorporating Trenchless Technology Research. Vol. 21 (2006), pp.46-55.

Google Scholar

[8] Wawersik W R, Fairhurst C A, in: Int. J. Rock. Mech. Min Sci Geomech. Vol. 7 (1970), pp.561-575.

Google Scholar

[9] Itasca Consulting Group 1996. Version 3. 0, Minneapolis, Minnesota, USA.

Google Scholar