Fig. 1. Linear approximation of GHB rock mass failure criterion by Hoek et al. (2002)
Fig. 2. Linear best-fitting of the GHB criterion in (a) an arbitrary range of σ3 and (b) the corresponding range of the transformed stress
Fig. 3. Circular tunnel subjected to biaxial stress field.
Fig. 4. Equivalent M-C strength parameter values from two different approaches for varying GSI value; (a) Friction angle, (b) Cohesion
Fig. 5. Ratios of the equivalent M-C parameter values to the equivalent values estimated by Hoek et al. (2002) for the range of compressive minor principal stress
참고문헌
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