Metallic Density Mapping – Buried Piping Network Digital Twin Modeling CP Current Requirements

Abstract This paper describes a methodology to develop a digital twin of the buried assets of a complex plant environment by mapping the metallic surface area buried throughout the facility. This digital twin can be utilized to calculate the current required for cathodic protection of buried piping. On a broader scale, this system can be used to identify areas of a plant where buried metallic interferences may prevent new piping installation, complicate excavations, or generate heightened risk for grounding and electrical safety. This methodology has been applied at various nuclear power plants where complex buried assets present challenges to modeling corrosion and piping integrity. This application employed the use of geographic information systems (GIS), computer aided design (CAD), and building information systems (BIM) to develop digital twins to support characterization and decommissioning of complex nuclear sites.