Accession Number : AD0707889

Title :   COMPRESSIBILITY AND STRENGTH OF STIFF INTACT CLAYS,

Corporate Author : PALERMO UNIV (ITALY) ISTITUTO DI IDRAULICA

Personal Author(s) : Croce,A. ; Jappelli,R. ; Pellegrino,A. ; Viggiani,C.

Report Date : 1969

Pagination or Media Count : 13

Abstract : A broad research on the mechanical behavior of stiff intact clays belonging to plio-pleistocenic marine formations widespread over the Italian territory is described in this paper. The general features of the 19 deposits explored are similar and make possible a unique investigation; the large variations of the preconsolidation load among the deposits allow the investigation to cover a range of mechanical properties unusually wide in the study of natural soils. The virgin consolidation line of these clays in straight up to a pressure as high as 600 kg/sq cm. The compression index depends on the in-situ void ratio, irrespective of the plasticity of the soil; this correlation is interpreted as an index of the prevailing influence of the structure of the soil. The shape of the failure envelope in terms of effective stress and the pore pressure response are related to the preconsolidation load deduced by consolidation tests. (Author)

Descriptors :   (*STRUCTURAL GEOLOGY, ITALY), (*CLAY, *SOIL MECHANICS), COMPRESSIVE PROPERTIES, PARTICLE SIZE, SEDIMENTARY ROCK, POROSITY, PLASTIC PROPERTIES, SHEAR STRESSES, SAMPLING

Subject Categories : Geology, Geochemistry and Mineralogy
      Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE