The design of foundations for industrial and commercial structures may require measuring the elastic properties of the subsurface materials through correlation with s-wave and p-wave velocities. THG Geophysics has collected and analyzed vertical seismic profile (VSP) data for the design of foundations for wind generating stations and commercial structures throughout the United States, Canada, and Mexico. As a result, we have streamlined VSP data acquisition and interpretation procedures to minimize field time and project costs while maintaining high data quality.
Surface seismic data can also be used to calculate p– and s-wave velocities in 1– or 2-dimensions through the use of multichannel analysis of surface waves (MASW) and through seismic seismic refraction methods. These data can be used for rippability estimates for road or pipeline construction or for identification of incompetent zones related to karst.
We are also often contacted to image the subsurface for purposes of identifying karst features, lake or river sediment thickness, overburden stratigraphy, or bedrock topography. The approach used for these types of surveys are always site specific. However, we have found that where applicable, multi-electrode resistivity profiling often produces cost-effective, outstanding, and reliable results.
Contact us to learn more about these methods and to discuss any project specific needs that can be answered through the use of geophysics.
4280 Old Wm. Penn Hwy.
Murrysville, Pennsylvania 15668