Research Article

Discussions on the Complete Strain Energy Characteristics of Deep Granite and Assessment of Rockburst Tendency

Table 1

The testing data and linear elastic strain energy.

Confining pressure (MPa)Elasticity modulus (GPa)Poisson’s ratioInitial crack stress (MPa)Strain energy density (J·m3)

5.060.300.2193.507.16E + 04
5.059.970.1995.716.78E + 04
5.061.160.21110.477.07E + 04
10.076.130.21128.027.82E + 04
10.074.560.23137.198.83E + 04
10.079.920.20128.487.89E + 04
20.085.270.23138.719.35E + 04
20.082.760.22145.851.03E + 05
20.078.010.23164.039.10E + 04
30.080.940.21174.231.26E + 05
30.091.860.23194.001.12E + 05
30.087.120.22208.831.19E + 05
40.086.240.24214.941.20E + 05
40.087.600.22191.461.34E + 05
40.083.900.23249.611.39E + 05