Fig. 3
Elastic-soft-fractured mechanical model for the surrounding rock of weakly cemented soft rock roadways. p0—support resistance, pw—the contact stress at the interface between the plastic softening zones and plastic fracture zone, ps—the contact stress at the interface between the elastic and plastic softening zones, p1—original rock stress, r0—the radius of roadway, rw—the radius of the plastic fracture zone, rs—the radius of the plastic softening zone, r1—the radius of elastic zone.
