Study on Rational Width of Entry Protection Coal-Pillar in Large Mining Height Working Face

Xu Feng Wang; Dong Sheng Zhang; Ting Feng Cui; Jin Liang Wang; Wei Zhang

doi:10.4028/www.scientific.net/AMR.413.404

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 413Study on Rational Width of Entry Protection...

Study on Rational Width of Entry Protection Coal-Pillar in Large Mining Height Working Face

Abstract:

This paper demonstrates the attempt to identify a reasonable chain pillar width in the condition of large mining height, along with a case study at the gateway of No.1103 panel with large mining height in Suancigou Mine. Theoretical calculation and numerical simulation were employed as the main approaches during the research to figure out the rational width of entry protection coal-pillar, which was then proved to be capable for engineering practice. The results that derived from our research can offer technical support for spot production, and serve as references for future investigation upon chain pillar design under large mining height.

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Periodical:

Advanced Materials Research (Volume 413)

Pages:

404-409

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.413.404

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Online since:

December 2011

Authors:

Xu Feng Wang, Dong Sheng Zhang, Ting Feng Cui, Jin Liang Wang, Wei Zhang

Keywords:

Coal-Pillar Width, Large Mining Height, Mining Roadway

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