Study on the Supporting Method of Crossheading in Shallow-Buried Coal Seams Working Face Using FLAC Simulation

Jian Feng Luo

doi:10.4028/www.scientific.net/AMM.275-277.1564

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277Study on the Supporting Method of Crossheading in...

Study on the Supporting Method of Crossheading in Shallow-Buried Coal Seams Working Face Using FLAC Simulation

Abstract:

Taking 1403 coal face of Fengjia coal mine in northern Shaanxi as background, put forward three supporting schemes of crossheading according to different buried depth and coal seam interval. Applying FLAC software, established relevant calculating model, analyzed the stress field and surrounding rock deformation caused by shallow seam mining before and after supporting. Combining the result from site monitoring, obtained the deformation law of crossheading surrounding rocks in the short distance seam: the vertical deformation is the main deformation under the A support scheme. The field tests showed that: the supporting schemes according to the section of crossheading is feasible and it ensured haulage gate roadway’s surrounding rocks stability , met the requirements of safety production in the coal mine, the supporting schemes of crossheading proposed in this paper has reference value to similar project.

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

Pages:

1564-1568

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.275-277.1564

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Online since:

January 2013

Authors:

Jian Feng Luo

Keywords:

Deformation of Surrounding Rock, Field Monitoring, FLAC Simulation, Shallow-Buried Coal Seams, Supporting

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References

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