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 4
Relationship between the specific surface area increments and the pore diameters of the No. 6 coal seam (Å is 10−1 nm): (a) hard coal; (b) soft coal.
| (a) |
| (b) |