An Index for Estimating the Stability of the Layered Rock Masses under Excavation Disturbance

<div>Geometric model of tunnel excavation (peripheral mountain not displayed) and support structure model: (a) tunnel excavation model and (b) support structure model.</div>

Advances in Materials Science and Engineering

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Figure 8

Figure 8: An Index for Estimating the Stability of the Layered Rock Masses under Excavation Disturbance 