Study on Reasonable Filling Width of Gob-Side Entry Retaining and its Engineering Application

Abstract:

Based upon the engineering background of IV315 coal mining face of Mengzhuang Coal Mine, the numerical simulation software UDEC is used to analyze rational packing width under the conditions of different filling widths on the driving roadway. The rational coal pillar size is initially decided as 2.0 meters through simulating and analyzing. On this basis, the influence of second mining on the retaining roadway was analyzed by numerical simulation. Combined with the field measurement, the support parameters and the 2.0 meters packing width are proven to be rational, which provides a reference for the coal mining faces with similar conditions.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 2288-2293
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.2288
• Online since: September 2013
• Authors: Xiang Qian Wang, Xiang Rui Meng, Zhao Ning Gao
• Keywords: Gob Side Entry Retaining, Mining Influence, Numerical Simulation, Packing Width

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