Research Article
An Index for Estimating the Stability of the Layered Rock Masses under Excavation Disturbance
Table 1
Mechanical parameters of the artificial layered rock mass.
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Note: and denote the elastic moduli in the directions parallel and normal to the bedding plane, respectively; denotes the shear modulus in the direction normal to the bedding plane, which is calculated based on the empirical equation [12]; and denote the Poisson ratios in the directions parallel and normal to the bedding plane, respectively; and denote the dilation angles of the interlayered rock and the bedding plane, respectively. |