Research on the Identification of Precursor Information of Limestone Rockburst under Triaxial Unloading Conditions

Figure 2

The relationship between strain energy at unloading point, peak point, and residual point and confining pressure under triaxial loading and unloading conditions. Note: in the figure, p represents the peak point, r represents the residual point, and o represents the unloading point.

(a) Elastic energy

(b) Dissipated energy

(c) Total energy

(d) Axial strain energy

(e) Circumferential strain energy