Study on Interfacial Crack Initiation of Jointed Rock Mass Based on Interface Fracture Mechanics

The fracture of interfacial crack is the main failure type jointed rock mass. Therefore, it very important to study For similarity mass and composites (all are composed by two parts, intact materials their contact interfaces), interface mechanics widely used for analysis (bimaterials) can be applied based on basic theories mechanics, was analyzed, one new criterion initiation proposed. Moreover, proposed criterion, effect influence factors analyzed comprehensively. At last, using triaxial compression numerical tests a specimen with crack, theoretical studies were verified.