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

Qing Hai Li; Ren Shu Yang; Dong Ming Guo; Zhong Cheng Qin

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

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 261-263Analysis of Supporting Rock Structure during...

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

Abstract:

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.

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Periodical:

Advanced Materials Research (Volumes 261-263)

Pages:

1603-1607

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.261-263.1603

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Online since:

May 2011

Authors:

Qing Hai Li, Ren Shu Yang, Dong Ming Guo, Zhong Cheng Qin

Keywords:

Overlying Strata Movement, Shallow Seam, Sliding Instability, Support Resistance, Supporting Rock

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References

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