Influence of Temperature Variation on Parameters of Pressuremeter Test of a Compacted Soil

Abstract : Energetic geostructures consist in establishing a thermal exchange with the ground directly through systems integrated into the building foundations or structures. Incorporation of heat exchangers into geostructures brings questions on the impact of the temperature variations on the geotechnical parameters of the sensitive soils (illite, smectite...). The design of the bearing capacities of deep foundations is actually based on pressuremeter or penetrometer test results. In this study, a mini-pressuremeter test was developed to carry out laboratory tests on compacted samples submitted to different thermal variations. Mini-pressuremeter tests were conducted on an illitic soil compacted in a cylindrical container, submitted to temperature equal to 1, 20 and 40 °C. The impact of the temperature variation on the limit pressure (pl) and the creep pressure (pf) is presented.
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Hossein Eslami, Sandrine Rosin-Paumier, Adel Abdallah, Farimah Masrouri. Influence of Temperature Variation on Parameters of Pressuremeter Test of a Compacted Soil. Annales du Bâtiment et des travaux publics, Eska, 2013, 12 p. ⟨10.1201/b21938-110⟩. ⟨hal-01431334⟩

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