Advances in Civil Engineering / 2020 / Article / Fig 5

Research Article

A Study of the Laws of Abnormal Gas Emissions and the Stability Controls for Coal Mine Walls in Deeply Buried High-Gas Coal Seams

Figure 5

Relationship between the coal pore volume increments and the pore diameters of the No. 6 coal seam (Å is 10−1 nm): (a) hard coal; (b) soft coal.
(a)
(b)

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