D-P准则与岩石断裂韧度KIc，KIIc关系的研究

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Abstract Through overlapping the stresses at the end region of a crack，the total stress at the end region of tensile and shearing crack is obtained，which is then introduced into D-P failure criterion. The relation between coefficient of D-P failure criterion and rock fracture toughness KIc，KIIc is deduced. The validity of deduced relation is proved by an example of slope rock masses in Three Gorges Project.

Key words： rock mechanics tensile and shearing crack D-P failure criterion fracture toughness

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https://rockmech.whrsm.ac.cn/EN/Y2004/V23/IS1/4300

[1]	JIA Xirong1，LIU Yuedong2，3，4，LIU Chang2，3，4，LIU Mingyin5，6，HAN Feng7. Nonlinear Coulomb strength criterion based on uniaxial compressive and tensile strength of rocks[J]. , 2025, 44(S1): 1-9.