Research Article
Coupling Analysis of Water Injection Softening-Precursor Information Prediction of Coal-Rock Mass Based on Energy Conduction
Figure 4
The whole evolution of “true energy” acoustic emission of coal samples under different conditions.
(a) Whole evolution of “true energy” acoustic emission of coal samples under dry state |
(b) Whole evolution of “true energy” acoustic emission of coal samples under natural state |
(c) Whole evolution of “true energy” acoustic emission of coal samples under saturated state |