Study on investigation method of surface structure in double complex area of Longmen Mountain
The surface geological conditions in the piedmont of Longmen Mountain are complex,and the shallow surface velocity and thickness vary greatly,which brings great difficulties to the shooting,reception,and static correction.Surface in-vestigation directly affects the imaging effect of underground media.In order to obtain accurate static correction data for seis-mic exploration in this area and provide the basis for well-depth design,the surface investigation methods suitable for this area are studied.Combined with the working principles of geological profile,shallow earthquake,small tomography,surface micro logging,drilling coring,high-density electrical method,and three-component resonance surface investigation methods,differ-ent methods are compared,and the application effects of different investigation methods are analyzed.Through the comparison of different surface investigations,the application scope of different methods is analyzed,which provides a basis for the selec-tion of appropriate surface investigation methods and method parameters and provides a reference for surface investigation in other complex surface areas.
国家科技期刊平台
NSTL
万方数据
