Theoretical study and physical modeling on ‘Principle of Maximum’in slope stability analysis

摘要: The conventional rock wedge stability analysis method proposed in textbooks actually involves an assumption that the shear forces applied on failure planes are parallel to line of intersection. Pan argued force does not necessarily act such a way but would readjust mobilize maximum factor safety. A new allows input various directions is presented this paper. By applying limit equilibrium conditions governing equation calculate safety has been obtained, which permits formal demonstration confirm exists when dilates at values friction angles left and right respectively along direction required by Mohr–Coulomb’s associative flow law. Pan’s principle therefore demonstrated. This paper also presents results centrifuge model tests show reasonable evidence support maximum.