Study of Reasonable Width of Section Coal-Pillar in Contiguous Seams

Yun Bing Hou; Jun Dong Sun; Peng Hai Deng; Yuan Yuan Kang

doi:10.4028/www.scientific.net/AMR.1092-1093.1464

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1092-1093Study of Reasonable Width of Section Coal-Pillar...

Study of Reasonable Width of Section Coal-Pillar in Contiguous Seams

Abstract:

Considering the serious destruction of S2 section tailgate of Liujia mine 6-7coal seam, the theoretical calculation, numerical simulation and other methods were comprehensively applied to the optimization study on the coal pillar width of very close distance coal seam. Study have shown that the lower roadway must be decorated out of the support pressure range of the upper left pillar. On basis of the theoretical calculation, the paper included the reasonable width of coal pillar is 7-9m.When the width of pillar is 8m, the stability of S2 section tailgate is good. Comprehensive consideration to determine the coal pillar width is 5 meters.

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Periodical:

Advanced Materials Research (Volumes 1092-1093)

Pages:

1464-1469

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1092-1093.1464

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Online since:

March 2015

Authors:

Yun Bing Hou, Jun Dong Sun, Peng Hai Deng, Yuan Yuan Kang

Keywords:

Close Distance Coal Mine, Numerical Simulation, Reasonable Width, Section Coal Pillar

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