Some examples of the use of GPR in engineering and environment at the university of Aveiro, Portugal

Ground Probing Radar techniques can be used to analyse projects at shallow depths of investigation (Reynolds,1997) At the Department of Geosciences, Universidade de Aveiro, Portugal, GPR techniques have been widely used in Archaeology, Geotechnics, Hydrogeology and Environrnental problems. However, these techniques should be always used in conjunction with other geophysical methods so that a better interpretation is proposed, as overall experience in GPR data processing and interpretation is developing rapidly. In Archaeological studies GPR has been used widely to identify potential escavation areas. Therefore an Archaeological application of GPR in conjunction with seismic refraction from Praça do Infante, Oporto (North Portugal) is discussed. GPR was used to delineate bedrock topography and depth, as well as to locate diffractions from potential buried structures. GPR interpretation is supported by seismic refraction data interpreted with the Generalized Reciprocal Method (Palmer, 1980) and Intercept Time Method (Adachi, 1954). The overall geophysical model was tested and ajusted using local mechanical soundings. The infonnation was integrated using a GIS system.