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Retrieving "Joint Set Number" from the archives

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  1. Rock Mass

    Linked via "Joint Set Number"

    Where:
    RQD: Rock Quality Designation.
    $J_n$: Joint Set Number (accounting for the number of joint sets).
    $J_r$: Joint Roughness Number.
    $J_a$: Joint Alteration Number (related to weathering and infilling).