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

<div>Point safety factor, plastic zone, and actual failure of the artificial layered rock mass specimen: (a) <i>β</i> = 60° and confining pressure 0 MPa and (b) <i>β</i> = 60° and confining pressure 35 MPa.</div>

Advances in Materials Science and Engineering

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Figure 4

Figure 4: An Index for Estimating the Stability of the Layered Rock Masses under Excavation Disturbance 