Distribution Characteristic and Migration Mechanism of Toxic Gases in Goafs during Close-Distance Coal Seam Mining: a Case Study of Shaping Coal Mine.

ACS Omega · 2022 · PMC8892677 · PMID 35252730

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a decreasing trendno p-value reported

From 180 to 25 m in front of the 1818 face, the oxygen concentration in the goaf showed a decreasing trend.

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