Table of Contents
What does a GPR survey show?
GPR is non-intrusive, non-destructive and benign, making it safe for use in public spaces. It detects metallic and non-metallic objects and voids. It can resolve construction layer interfaces. Estimation of depth, dimensions of larger objects and layer thickness.
Can GPR detect graves?
Ground Penetrating Radar (GPR) is the only viable non-destructive method used for grave detection. During the grave detection survey, GeoModel, Inc. marks the location of detected graves on the ground with a paint line down the center axis of the grave for the length of the grave (as shown below).
How deep can GPR detect?
GPR can reach depths of up to 100 feet (30 meters) in low conductivity materials such as dry sand or granite. Moist clays, shale, and other high conductivity materials, may attenuate or absorb GPR signals, greatly decreasing the depth of penetration to 3 feet (1 meter) or less.
Can GPR detect bedrock?
Ground Penetrating Radar (GPR) can be used for geological surveys to detect features such as the bedrock, water table, and stratigraphic layers.
How do I find buried gravestones?
Go online to a burial website dedicated to locating gravestones: BillionGraves.com and FindAGrave.com are the two leading sites for this purpose. Volunteers take photos of gravestones and regularly upload them to both of these sites.
How sensitive is GPR?
GPR is 100\% accurate While GPR is one of the most effective forms of non-destructive testing, it is not 100\% accurate. The variables we have discussed here such as the conditions and material of the scanning area, along with the person using the equipment all affect the accuracy.
Can GPR detect rocks?
GPR can have applications in a variety of media, including rock, soil, ice, fresh water, pavements and structures. In the right conditions, practitioners can use GPR to detect subsurface objects, changes in material properties, and voids and cracks.