Analysis of Supporting Rock Structure during Overlying Strata Movement in Shallow Seam Stope

Abstract:

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Based on existing models of main roof structure, combined with results of field observations, this paper put forward model of supporting rock structure during overlying strata movement in shallow depth. Through force and sliding instability analysis of the structure, it is obtained the relationship between block sliding and block’s lumpiness i and rotation angle θ, and determined a proper formula for calculating support resistance, and obtained the relationship between support resistance and block’s lumpiness i and rotation angle θ, which provides a theoretical basis for roof control and supports selection during shallow seam mining.

Info:

Periodical:

Advanced Materials Research (Volumes 261-263)

Edited by:

Jingying Zhao

Pages:

1603-1607

DOI:

10.4028/www.scientific.net/AMR.261-263.1603

Citation:

Q. H. Li et al., "Analysis of Supporting Rock Structure during Overlying Strata Movement in Shallow Seam Stope", Advanced Materials Research, Vols. 261-263, pp. 1603-1607, 2011

Online since:

May 2011

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Price:

$35.00

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