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  1. Rock Mass

    Linked via "Mohr-Coulomb criterion"

    Discontinuity Persistence and Shearing Resistance
    The shear strength along a discontinuity surface ($\tau_f$) is critical for slope stability and excavation support. It is commonly modeled using the Mohr-Coulomb criterion, adapted for rock joints:
    $$\tauf = c + (\sigman - u) \tan(\phi_j)$$