Measurement and Analysis for Gas Emission Characters in Fully Mechanized Caving Face

Abstract:

According to the practical condition of 3401 fully mechanized caving face in Dayang coal mine, the relationship between strata behaviors, mining technology and stope gas emission are analyzed through real-time monitoring of the support working resistance, advance abutment pressure and gas concentration of working face. It shows that the change of working face abutment pressure has an obvious effect on the regularity of coal face gas emission. The crest value of gas emission falls behind periodic weighting, the lagging time is about one day. Other factors, like coal production processes, daily coal output and advance speed also have close relationships with gas emission.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 2331-2336
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.2331
• Online since: August 2013
• Authors: Xin Jian Li, Shou Song Guo, Jun He, Xiang Fan Mi
• Keywords: Fully Mechanized Caving Mining, Gas Emission, Mining Technology, Strata Behavior

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