Internal Erosion Prize Challenge Competition Next Steps: Evaluating Distributed Acoustic Sensing (DAS) for Large Critical Infrastructure Imaging and Monitoring
The goal of this project is to determine if Distributed Acoustic Sensing (DAS) can detect and image internal erosion and other complex structural issues within or below earthen embankments? While inspection and condition assessment programs are effective, current methods are resource intensive and cannot reliably detect internal erosion early in the process. Internal erosion can take place over a long period of time, but often remains invisible until serious damage occurs. The ability to reliably detect internal erosion would help Reclamation assess and reduce risks by allowing intervention against internal erosion early in the process.
Need and Benefit
One of the main failure modes and safety concerns for earthen embankments is concentrated seepage and internal erosion. Plans to manage and remediate structural problems within large infrastructure cannot be fully established until we have knowledge of the extent and severity of the issue. DAS promises to be an effective way to gain this knowledge a priori.
Contact the Principal Investigator for information about partners.
Bureau of Reclamation Review
The following documents were reviewed by experts in fields relating to this project's study and findings. The results were determined to be achieved using valid means.
Internal Erosion Prize Challenge Competition Next Steps: Evaluating Distributed Acoustic Sensing (DAS) for Large Critical Infrastructure Imaging and Monitoring (final, PDF, 4.1MB)
By Justin Rittgers
Report completed on September 30, 2020