Subsurface geologic hazards can pose problems for pre-construction design, the integrity of existing structures, and the general stability of a project site. The utilization of geophysical methods to characterize a site can help to identify unknown hazards, as well as properly delineate existing hazardous features.
- Sinkhole mapping
- Slope stability investigations
- Depth and integrity of subsurface rock formations
- Fracture zones
- Ravel zones
Geophysical methods such as electrical resistivity and seismic mapping are two of the most common and effective tools to identify geologic hazards. These methods cover large areas quickly and provide a detailed analysis of subsurface site conditions. Ground penetrating radar can also be an effective tool in identifying variability in subsurface stratigraphy, or locating buried objects of concern.