This paper deals with the response features of AR(apparent ratio of seismic wave velocities to the changes of TR(true ratio of wave velocities)in the horizontal layered model by mathematical modeling.
In this paper,we focused on earthquakes with M S≥7.0 in the Chinese mainland from1900 to 2012,calculated the lunisolar tidal Coulomb failure stress on the seismic fault plane and got the tidal phase t