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Study of the swelling properties of marl samples of the “Morne Delmas” geological formation using indirect and direct methods. Some effects of waste water on these properties

Kelly Guerrier, Dominique Boisson, Jean-François Thimus, Christian Schroeder

In the proceedings of: GeoRegina 2014: 67th Canadian Geotechnical Conference

Session: Soil Mechanics

ABSTRACT: Several cases of cracks in buildings recorded in the metropolitan area of Port-au-Prince (Haiti) are due to the presence of swelling clays in calcareous marls of the "Morne Delmas" formation which is a geological formation of the Pliocene. In addition, gaps in the sanitation system due to uncontrolled appropriation of land by a growing population have lead to pollution of soil by domestic and industrial sewage which accentuates the problem of swelling. This article presents the mineralogical and geotechnical methods to characterize the swelling of "Morne Delmas" marl and the impact of wastewater on it.

RÉSUMÉ: Plusieurs cas de fissurations de bâtiments enregistrés dans la région métropolitaine de Port-au-Prince (Haïti) sont dûs à la présence d™argiles gonflantes dans les marnes calcaires de la formation « Morne Delmas » qui est une formation géologique du Pliocène. De plus, les lacunes du système d™assainissement dues à l™occupation non maîtrisées des terrains par une population croissante entraînent une pollution des sols par les eaux usées domestiques et industrielles ce qui accentue le problème de gonflement. Cet article présente les méthodes minéralogiques et géotechniques utilisées pour caractériser le gonflement des marnes de « Morne Delmas » et l™impact des eaux usées sur celui-ci.

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Cite this article:
Kelly Guerrier; Dominique Boisson; Jean-François Thimus; Christian Schroeder (2014) Study of the swelling properties of marl samples of the “Morne Delmas” geological formation using indirect and direct methods. Some effects of waste water on these properties in GEO2014. Ottawa, Ontario: Canadian Geotechnical Society.

@article{GeoRegina14Paper367, author = Kelly Guerrier; Dominique Boisson; Jean-François Thimus; Christian Schroeder,
title = Study of the swelling properties of marl samples of the “Morne Delmas” geological formation using indirect and direct methods. Some effects of waste water on these properties,
year = 2014
}