Abstract：Based on Taylor model and viscoelastic fracture mechanics，a method is proposed to estimate the uniaxial，shear and voluminal creep compliance of rocks jointed by parallel cracks. First，the interaction of parallel cracks is neglected and the anisotropic creep compliance of Taylor media is computed. Then each single crack is placed in Taylor media to account for the influence of other cracks on its creep behavior. Based on the above analysis，the creep compliance of rocks jointed by parallel cracks is derived. The effect of interaction among cracks is taken into account and the creep anisotropy of cracked rocks is analyzed. According to the analysis results，uniaxial and shear creep compliance of cracked rocks increases with increment of crack density parameter and decreases with increment of crack dip. The creep compliance with account of interaction among cracks is obviously bigger than that without of interaction among cracks. The proposed method makes it possible to estimate creep compliance of cracked rocks only by experimental study on rock samples in laboratory.
