Abstract
The paper presents the results of experimental investigations of restoring cohesion on the contact surfaces of two fragments of clayey soil. It has been found that this cohesion depends on the magnitude of the force pressing together the fragments of the soil, the time of its operation and on the soil consistency. It has been established that the absolute value of restored cohesion occurs for the liquidity index close to zero, i.e. for the soil moisture content close to the plastic limit.
Résumé
L'article présente les résultats de recherches expérimentales sur le processus de reconstitution de la cohésion à la surface de contact de deux fragments de sol argileux. On a constaté que la chésion dépend de l'intensité de la pression exercée sur les fragments de sols, de sa durée, ainsi que de la consistence du sol. On a mis en évidence que la valeur absolue de la cohésion reconstituée se manifeste pour un indice de liquidité voisin de 0, c'est-à-dire pour une humidité du sol proche de la limite de plasticité.
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References
KACZYNSKI R. (1977): Engineering-Geological estimation of the influence of weakness surfaces on the stability of slopes built of Krakowiec clays in the area of Tarnobrzeg (in Polish), Bull. of Geology. Vol. 22. Warsaw University Press, Warsaw, p. 5–49.
RYBICKI St., WOZNIAK H. (1978): Investigation of cohesion recreation process in clayey soils (in Polish) Proc. Fifth National Congress of Soil Mechanics and Foundations, Katowice, p. 147–151.
RYBICKI St. (1986): Structure and physicomechanical properties of dump soils. Proc. Fifth Int. Congr. Int. Assoc. Eng. Geol. Buenos Aires, p. 1019–1027.
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Rybicki, S.T. Restoration of cohesion in clayey soil dumps. Bulletin of the International Association of Engineering Geology 43, 87–92 (1991). https://doi.org/10.1007/BF02590175
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DOI: https://doi.org/10.1007/BF02590175