Study on Coal Roadway Supporting Parameters of Broken Thick Top-Coal Large Section

Wen Hua Guan; Kun Lv; Bo Peng; Wang Ma

doi:10.4028/www.scientific.net/AMR.535-537.1641

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 535-537Study on Coal Roadway Supporting Parameters of...

Study on Coal Roadway Supporting Parameters of Broken Thick Top-Coal Large Section

Abstract:

In order to solve the supporting problem of Wujiagou ore broken thick top-coal large sections coal roadway, in view of the mining geology and technology conditions, select the typical coal roadway 5106 tank and detect roof structure, detection results show that the major roof is coal, local contains feeble mudstone interlayer, shallow crack development, deep crack gradually reduce , then put forward the extra long bolt anchoring break top-coal to deep less fracture zone, and the theoretical calculation shows the feasibility and basic support parameters of using extra long bolt controlling deformation of coal roadway; Using FLAC numerical simulation method for different support scheme makes a comparative study, show that the extra long bolting effects obvious, and determined choosing extra long bolt + metal nets + W steel belt scheme. The site industrial test show that the extra long bolt + metal nets + W steel belt scheme supporting thick top-coal large sections of coal roadway effect is good.

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Periodical:

Advanced Materials Research (Volumes 535-537)

Pages:

1641-1646

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.535-537.1641

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Online since:

June 2012

Authors:

Wen Hua Guan, Kun Lv, Bo Peng, Wang Ma

Keywords:

Extra Long Bolt, Large Sections of Coal Roadway, Supporting Parameters, Thick Top-Coal

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