Explosion-Induced Stress Wave Propagation in Interacting Fault System: Numerical Modeling and Implications for Chaoyang Coal Mine

Figure 5

The strain energy density along the horizontal middle line of the cross section in the middle of the model box (as shown in Figures 2–4). The horizontal axis represents the distance from the blast loading area to the current position. The purple, blue, and black curves represent the distribution and evolution of the strain energy density at 0.03 s, 0.04 s, and 0.05 s, respectively. The preexisting fault is indicated with red solid line, the dip angle of fault A is set to α = 60°, 90°, and 135°, respectively. Dotted L1, L2, and L3 is used to indicate the evolution of the major pulses of the strain energy density with time. (a) Case D60. (b) Case D90. (c) Case D135.

(a)

(b)

(c)