Research progress of basin site effect based on 3D numerical simulation and influence of sedimentary environment on basin site

Complex sedimentary basin sites may amplify the seismic waves significantly; meanwhile the sedimentary environment influences the basin sites seriously. This paper retrospects the methods used to study the basin effect,which is a kind of typical site effects; emphatically introduces finite- difference method,finite element method and multi-transmitting formula that are wildly used in recent years; reviews the modeling methods used in 3-D numerical simulation and the results of basin effect simulations recently; introduces the simulation of sedimentary fill of basins based on sedimentary environment and studies of the influence of sedimentary environment on sediment physical parameters. Finally the paper puts forward research thinking: improving simulate precision by diminishing model size and considering the influence of sedimentary environment in basin site modeling.