Development of Geophysical Methodologies for the Assessment of Coastal Concrete Infrastructures

Due to the geometry and sea effect, an adaptive methodology is required in the case of the geophysical assessment of coastal concrete infrastructures. Along with other observables, these distinctivenesses influence the resistivity and permittivity measurement. The procedure jointly uses the ERT and GPR geophysical methods and is directly taking into account the geometrical engineered particularities, and the presence of the sea water. With complex geometrical shapes addressing the engineering needs, measurements are directly under the effect of the general geometry and underlying structures. In order to identify the 3D structures, the acquisition and the processing steps have to take into account these complexities and the corresponding anomalies. The process considers the geotechnical and geometrical properties during the data processing and inversion problem in order to assess the coastal concrete infrastructure state.