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GEOTECHNICAL AND GEOPHYSICAL CHARACTERISTICS OF SOILS IN MAHOTIERE (KENSCOFF-HAITI)
Session: General Geotechnique and Engineering Geology / Géotechnique générale et géologie de l'ingénieur
Berthoumieux Junior JEAN, Laboratoire National du Batiment et des Travaux Publics / Université d'Etat d'Haiti (Haïti)
Dominique Boisson, Université d'Etat d'Haiti (Haïti)
Jean-François Thimus, Université Catholique de Louvain (Belgique)
Christian Schroeder, Université Libre de Bruxelles (Belgique)
A geological study based on bibliographic data found on Kenscoff-Mahotiere area revealed that this region is part of “Massif de la Selle System” and is constituted mainly of two sedimentary dating from the Eocene (ei - limestone) and Paleocene (ep - clay). The geotechnical analysis (physical, mineralogical and chemical identification tests) carried out in the laboratory has allowed to classify the soil samples collected in Mahotiere as calcareous sand and plastic clay, especially in the presence of smectite, chlorite and kaolinite. The geophysical survey carried out in situ (electrical sounding, electrical tomography and refraction seismic) confirms the geological nature of the soil and also describes its geophysical behavior. We made a comparative study between these two approaches to obtain the final characterization of the soil and to determine in the study area the different soils profiles such as: plastic swelling clay and limestones.
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