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Numerical Investigation of the Minimum Roof Thickness of Mining Stope in Bailing Copper-Zinc Mine

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Abstract:

A three-dimensional numerical model of the rock mass including ore body is established by FLAC3D software, and then the surface subsidence caused by backfilling under different roof thicknesses of mining stope (the vertical distance between upper mining limit and surface) are calculated and analyzed. By comparing the surface displacement, the stress distribution, and the damage zone under different conditions, the minimum roof thickness is determined.

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Periodical:

Applied Mechanics and Materials (Volumes 670-671)

Pages:

668-673

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.670-671.668

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Online since:

October 2014

Authors:

Jiang Feng Ma, Xiu Li Zhang, Yu Yong Jiao, Hu Nan Tian

Keywords:

Numerical Analysis, Stope Roof Thickness, Surface Subsidence

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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References

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