Question: Suppose that the pillar stress is 29 MPa in a room and pillar mine and that a joint set is present with an average bearing

Suppose that the pillar stress is 29 MPa in a room and pillar mine and that a joint set is present with an average bearing of N45W. If the joints obey a Mohr–Coulomb slip criterion and have a friction angle of 35◦ and a cohesion of 4 MPa, what range of joint dips is unsafe with respect to joint slip?

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Given Pillar stress 29 MPa Joints 8 N45W 8 MC Tj 0 tand G c 4 MPa j 35 Find Range of unsafe ... View full answer

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