The Dam Safety Group brings together a group of member companies, both instrument OEMs and service contractors, ideally positioned to use proven geophysical...
The Dam Safety Group brings together a group of member companies, both instrument OEMs and service contractors, ideally positioned to use proven geophysical technologies, services and products for Dam site investigation and monitoring together with seismic monitoring via earthquake early warning and evaluation systems.
Importance of Dam Safety
The safety of dams is not just a matter of infrastructure integrity but also a critical aspect of public safety and environmental protection. Dams are designed to withstand natural and man-made stresses, including seismic activity, water pressure, and environmental changes. By employing advanced technologies and rigorous monitoring protocols, stakeholders can mitigate risks and ensure the resilience of these essential structures.
Geophysical Technologies for Dam Site Investigation
Electrical Resistivity Imaging (ERI): ERI surveys measure the electrical resistivity of subsurface materials, helping engineers identify geological features, groundwater levels, and potential seepage paths around dams. This information aids in assessing foundation stability and identifying areas prone to erosion.
Seismic Refraction Tomography: Seismic methods provide insights into subsurface conditions by measuring the velocity of seismic waves. This technique is valuable for mapping bedrock depth, identifying geological faults, and assessing the integrity of dam foundations.
Ground Penetrating Radar (GPR): GPR uses high-frequency radar pulses to image subsurface features. It is effective for detecting buried objects, concrete delamination within dam structures, and assessing concrete thickness and integrity.
