Abstract
Based on the theory of damage mechanics, continuum mechanics and thermodynamics, this paper gives the concrete tension constitutive equation, then, the selection principle of the relevant parameters of the foundation rock is given. Finally, considering the damage evolution of rock foundation in the calculation process, this paper describes the real seismic damage characteristics of dam foundation system. The main conclusions are as follows: when the foundation rock mass and the dam use damage model, the earthquake damage area and damage degree of the dam are reduced, which makes the dam more partial safety. The result will be closer to the actual, which has certain reference significance to the guiding project.
