Analytic model for effect of geologic defects on dams

Aiming at the effect of geologic defects on dam foundation and abutment,the creep character of geologic defects and its variation rules are thoroughly studied.Base on such a basis,a normal and tangential creep deformation model is established.The model reflects the instant elastic deformation,attenuation creep,lagged recoverable deformation and un-recoverable creep deformation of the geologic defects.Engineering cases have indicated that the present creep analytic model perfectly reflects the effects of geologic defects on dam characters.