Full text loading...
-
Integrated studies of Swiss waste disposal sites: results from georadar and other geophysical surveys
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Fifth International Conferention on Ground Penetrating Radar, Jun 1994, cp-300-00093
Abstract
Georadar, electrical resistivity and magnetic data have been recorded across a composite landfill site in northern Switzerland. The landfill comprises industrial waste and domestic garbage deposited in former gravel pits. An integrated interpretation of the georadar and electrical resistivity data, constrained by surface and limited borehole geological information, has allowed the host surficial sedimentary units to be mapped over a wide area~ Of particular importance for an improved understanding of the local hydrogeological conditions are the location and approximate depth extent of gravel channels and lenses. All three data sets have been used to define the boundaries of the industrial waste, but the borders of the domestic garbage were only well-delineated on the georadar profIles and magnetic data. In addition to providing new details on the location and dimensions of the waste disposal sites, the geophysical data have confirmed suspicions that a strip of undisturbed land bifurcates the composite landfill and have supplied critical information on the location and depth of ferrous and non-ferrous metallic objects.