Study of Stope Structure Model and Parameters

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Abstract:

Based on theoretical analysis and computational mechanics, the spatial structure of overburden rock model of 1704 working face in a coal mine, stratum quality membership of uniaxial compressive strength, layer thickness, joint cracks were analyzed. Stope model was established, immediate roof caving step distance is calculated, fracturing length and structural composition of rock beam were calculated, which may have important implications for The failure mechanism of instability of coal rock.

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2191-2194

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] B. Unver, N .E. Yasitli. Modeling of strata movement with a special reference to caving mechanism in thick seam coal mining. International Journal of Coal Geology, 66(2006): 227~252.

DOI: 10.1016/j.coal.2005.05.008

Google Scholar

[2] Kang Tianhe, Jin Zhongming. Laws of Coal-Rock Movement and Derived Support Parameters for a Fully Mechanized Sub-Level Caving Face in a Gently Inclined Seam, lnt. Mining & Minerals, 1999, 2(21).

Google Scholar

[3] N.E. Yasitli, B. Unver. 3D numerical modeling of long wall mining with top-coal caving. International Journal of Rock Mechanics & Mining Sciences, 42(2005): 219~235.

DOI: 10.1016/j.ijrmms.2004.08.007

Google Scholar

[4] Ronald S. Conti, K.L. Cashdollar. Thermal and electrical ignitability of dust clouds, BMRI8798. US: (1983).

Google Scholar

[5] Albrand N. Software Program for Colliery Ventilation with Assimilation of Mine Fires, 21stInternational.

Google Scholar

[6] A.J. Hyettf etc, The Effect of Rock Mass Confinement on the Bond Strength of Fully Grouted Cable Bolts, Int.J. Rock Mech. Min Sci. &Geomech. Abstr, 1992, 5.

DOI: 10.1016/0148-9062(92)92634-o

Google Scholar