f Cost effective application of ground penetrating radar to detect cavities in Mallorca (Balearic Islands, Spain)

The detection of buried inhomogeneities and cavities are problems of a paramount importance in geotechnical testing before building. Previous successful cavity imaging in limestones has been reported among others by Collins et al (1993) and Casas et al (1996). The aim of this paper in to provide an additional case history which further provide the convenience of using GPR as a standard tool in high resolution engineering site characterisation. Here in we discuss the strategy of using GPR technique, as well as data processing and enhancement applied.