Abstract:
A method modeling the shallow seabed seismic wave field based on infinite element boundary is proposed, in which, the infinite element theory is used for simulating the infinite seabed. The stress field in the seabed is calculated by the proposed model, and then the simulation results are compared with that of the high-order staggered-grid finite difference method to prove the validity of the proposed modeling method. The absorption effect of the infinite boundary on the seabed seismic wave is studied, which shows that the absorption effects of the infinite element boundary on the compressional wave and shear wave are good, which can be applied to model the shallow seabed seismic wave field.