Figure 9
From: Investigation on the pore characteristics of coal specimens with bursting proneness

Plots of \({\rm{lg}}\,\frac{d{V}_{P}}{dP}\)and lgP of the two groups of specimens before and after uniaxial compression failure. (a,c,e) specimens from Hongqinghe Coal Mine before uniaxial compression failure; (b,d,f) specimens from Hongqinghe Coal Mine after uniaxial compression failure; (g,i,k) specimens from Nalinhe Coal Mine before uniaxial compression failure; (h,j,l) specimens from Nalinhe Coal Mine after uniaxial compression failure.