Abstract

Synopsis The Paper seeks to extend to a wider range of soil conditions the research already carried out upon the thermodynamics of soil moisture. The influence of the osmotic pressure of the salts dissolved in the soil water, the pressure in the pore air, and an applied general system of nine total stresses are briefly examined, in addition to the variables considered in earlier work. Use is made of the theory of dimensions to suggest that the invariants of both the stress and strain tensors could with advantage be employed in the study of soil moisture. The Paper concludes with a qualitative discussion of the probable performances of a wide range of soil types in the road subgrade, and subjected to diverse climatic conditions. Cet article cherche à étendre à une plus grande variété de conditions de sol, les recherches déjà faites sur les thermodynamiques de l'humidité des sols. En plus des variables traitées dans une étude précédente, on examine brièvement l'influence de la pression osmotique des sels dissouts dans l'eau du sol, la pression de l'air interstitiel et un système généale d'application de neuf tensions totales. On a utilisé la théorie des dimensions pour suggérer que les invariants des tenseurs de contrainte aussi bien que de déformation peuvent être utilisés avantageusement dans l'étude de l'humidite deś sols. L' article termine par une discussion qualitative des rendements probables d'une grande variété de sols types dans les sous-sols routiers, et soumis à diverses conditions climatiques.

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