The canal system generally suffers from frozen heaving in China's north. The form of damage mainly is vertical dislocation and horizontal displacement.

We focus on when the dislocation structure curve in the horizontal and vertical direction after the formation of the three-dimensional influence and the resulting form.

Using the Finite Element Method (FEM) and dislocation theory, we simulated the asymmetric earthquake displacement field of a vertical strike-slip fault caused by laterally inhomogeneous medium.