Effect of the Initial Support of the Tunnel on the Characteristics of Rockburst: Case Study and Mechanism Analysis

<div>The source parameter space of the microseismic event during rockburst development stage. (E)<sub>1</sub> = 4 and (E)<sub>2</sub> = 5 are the threshold for small-energy events, medium-energy events, and large-energy events, respectively. <i>AV</i><sub>1</sub> = 200 and <i>AV</i><sub>2</sub> = 400 are the threshold for small-volume events, medium-volume events, and large-volume events, respectively.</div>

Advances in Civil Engineering

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Figure 8

Figure 8: Effect of the Initial Support of the Tunnel on the Characteristics of Rockburst: Case Study and Mechanism Analysis 