Study of Strength and Deformation Evolution in Raw and Briquette Coal Samples under Uniaxial Compression via Monitoring Their Acoustic Emission Characteristics

Figure 12

Monitoring results on AE characteristics of briquette coal sample M4-1 with a cement content of 20% under uniaxial compression: (a) stress and amplitude; (b) stress and counts; (c) stress and energy.

(a)

(b)

(c)