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Geological Society, London, Engineering Geology Special Publications; 1997; v. 12; p. 167-173;
DOI: 10.1144/GSL.ENG.1997.012.01.14
© 1997 Geological Society of London

Section 3: Site Investigation

Radar tomography applied to foundation design in a karstic environment

L. Corin1, I. Couchard2, B. Dethy2, L. Halleux1, A. Monjoie3, T. Richter4 & J. P. Wauters2

1 G-TEC, 37 place de la Gare, B 4900 Spa, Belgium
2 TUCRAIL SA, 91 rue de France, B 1070 Brussels, Belgium
3 LGIH, Univ. of Liège, Building B 19, Sart Tilman, B 4000 Liège, Belgium
4 K-UTEC, Am Schacht II, Postfach 10, D 99701 Sondershausen, Germany

A case history illustrating an innovative application of borehole radar tomography to foundation problems in a karstic area is presented. The principles of the method and the geotechnical interpretation of the results are discussed. It is shown that, although ground conditions may be considered as very unfavourable for reflection radar techniques, good results were achieved in the crosshole mode, giving valuable information on both the geometry and the characteristics of the subsurface.