Advanced laboratory characterisation of London Clay
Lithological units, structure and stiffness
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This work aims at finding a framework for the London Clay relating the engineering proprieties of this material to its geological features. Results of tests on samples from different depths in their intact and reconstituted states using oedometer and advanced triaxial apparatus are presented. The structure and the nature of the clay from different strata are investigated and correlated with its large and small strain mechanical response. Shallower units show a more open structure and higher clay content than deeper units. Samples from the same units appear to have the same mechanical behaviour...
This work aims at finding a framework for the London
Clay relating the engineering proprieties of this
material to its geological features. Results of
tests on samples from different depths in their
intact and reconstituted states using
oedometer and advanced triaxial apparatus are
presented. The structure and the nature of the clay
from different strata are investigated and
correlated with its large and small strain
mechanical response. Shallower units show a more
open structure and higher clay content than deeper
units. Samples from the same units appear to have
the same mechanical behaviour and engineering
parameters, but differences are found between the
different units, which reflect the differences in
the nature and structure of clay from each stratum.
The behaviour in both compression and shearing seems
to be dominated by the structure of the clay as well
as by its nature, so that clay from units having a
more packed and orientated structure show a stiffer
response and higher strengths than the clay from
units with a more open structure. The stiffness
behaviour of the clay at small and large strains is
also presented.
Clay relating the engineering proprieties of this
material to its geological features. Results of
tests on samples from different depths in their
intact and reconstituted states using
oedometer and advanced triaxial apparatus are
presented. The structure and the nature of the clay
from different strata are investigated and
correlated with its large and small strain
mechanical response. Shallower units show a more
open structure and higher clay content than deeper
units. Samples from the same units appear to have
the same mechanical behaviour and engineering
parameters, but differences are found between the
different units, which reflect the differences in
the nature and structure of clay from each stratum.
The behaviour in both compression and shearing seems
to be dominated by the structure of the clay as well
as by its nature, so that clay from units having a
more packed and orientated structure show a stiffer
response and higher strengths than the clay from
units with a more open structure. The stiffness
behaviour of the clay at small and large strains is
also presented.
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