Study on the Fatigue Characteristic of Containing Intermittent Cracked Rock-like Samples;

Damage model of the rock mass medium with intermittent cracks;

Crack s influence on mechanical properties of the intermittent crack media;

Based on the analysis of relationship between damage evolution of crack and evolution of micro-crack,singularity damage variable and distribution damage variable have been defined,which can illustrate two kinds of damages,and the damage constitutive equation of non-interpenetrated crack material under uniaxial compressive condition has been built and validated by tests.