The GSR-3D Ground Imaging system uses finite differencing wave propagation and
automatic signal processing techniques to quickly obtain high resolution,
accurate 3D ground images. It illustrates significant advancements in 2D and 3D
seismic refraction data processing and presentation.
We provide fast, high quality 3D seismic data processing service. The following are
examples of 3D seismic data interpretation projects.
Assessing the effectiveness of compaction grouting.
Detecting dam scour depths.
Assessing the effectiveness of compaction grouting
Rapid and inexpensive seismic method was utilized by FHWA Central Federal Lands Highway Division in Rocky Mountain National Park, Colorado, during rehabilitation of a historic placed-rock armored slope structure located below roadway gradealong the outboard lane. The GSR-3D software was used to generate accurate before-grouting and post-grouting volumetric difference images that depicts the effect of grouting, including the resultant grout columns and ground densification characteristics.
GSR-3D software incorporates time, frequency, and velocity filters, and uses advanced pattern matching analysis of the signal spectrogram as well as the waveform to automatically determine consistent travel time picks. GSR-3D estimates travel times by propagating a wave across a continuous velocity model using wave front vector interpolation, resulting in efficient and accurate travel time estimates. This technique quickly converges to the solution of minimum travel time error with minimum velocity variation, providing consistent results.