Frequency-dependent reflection response of a laterally varying fracture, represented as a nonwelded interface

Displacement across the interface is not continuous in the case of a nonwelded interface. The stiffness of a nonwelded interface is a function of fracture properties, e.g., roughness, asperities, aperture and fracture infill. In this research, the fracture compliance has been estimated by AVO inversion of P-P reflected waves from a nonwelded...

Surface Wave Analysis for the characterization of granular material deposits

Knowledge of near-surface seismic-wave velocity of granular materials plays a valuable role in seismic exploration data processing. I will use the surface-wave analysis method for estimation of shear-wave velocity profile and P-wave refraction for estimation of pressure-wave velocity on a data set acquired over a sand dune in The Netherlands, a...

Analysis of 9-component SCPT data to obtain shallow subsoil structure

A 9-component seismic cone penetration test (SCPT) was conducted at a site near Delft. A sledge hammer striking horizontally a wooden plate was used to generate shear (S) waves polarized in the crossline and inline directions. A vertical hammer hitting a metal plate generated the P wave. The data were acquired using a recently developed array (7...