Abstract
The purpose of this study was to monitor frost heaving
and frost penetration at
six
observation sites in Finland in 1982 - 1984, Frost
heaving was also studied in
the
laboratory with frost-heave tests carried out on
undisturbed specimens.
The observed freezing behaviour was compared with the
climatic conditions. The
frost
penetration and frost heave were found to correlate with
the freezing index.
Relative
frost heave was fairly constant at each site, varying
between 0.03 and 0.23.
A calculation model based on heat balance at the freezing
front was tested for
the
estimation of frost heave and frost penetration. The
spatial description of
frost heaving
and frost penetration was reasonably good. Estimation of
the in situ
segregation
potential from the observed frost heaving and frost
penetration data was also
successful.
Comparison of the back calculated segregation potentials
from site observations
with
those from laboratory frost heave tests revealed a good
correlation between the
average
value of frost heave tests and the in-situ estimate. The
laboratory values
were, in
general, slightly smaller than the in-situ values. This
may reflect the
influence of side
friction on the laboratory test values.
| Original language | English |
|---|---|
| Qualification | Doctor Degree |
| Awarding Institution |
|
| Supervisors/Advisors |
|
| Award date | 8 May 1992 |
| Place of Publication | Espoo |
| Publisher | |
| Print ISBNs | 951-38-4073-5 |
| Electronic ISBNs | 978-951-38-7040-9 |
| Publication status | Published - 1992 |
| MoE publication type | G4 Doctoral dissertation (monograph) |
Keywords
- geotechnics
- soil mechanics
- soil tests
- frost heave
- frost penetration
- frost action
- models
- soil properties
- field tests
- frozen soils
- melting
- climate
- Finland