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Creep behaviour of frozen soils in uniaxial compression tests |
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| Authors: | H Eckardt |
| Institution: | aInstitute of Soil Mechanics and Rock Mechanics, University of Karlsruhe (German Federal Republic) |
| Abstract: | The stress—strain behaviour of frozen soils is often described by means of creep curves from uniaxial or triaxial creep tests. Ten or twelve tests of similar samples are required to obtain a good relationship between stress σ, strain ε, temperature T and time t or strain rate ε. To reduce the required number of samples it is possible to apply the compression load in creep tests stepwise. Therefore creep curves for different stress levels can be obtained from one sample. In this paper the bearing capacity of cylindrical samples of frozen medium sand under constant uniaxial compression stress and under stepwise increased stresses is compared. It is shown how to use these different creep curves to describe the stress—strain behaviour of frozen soils. |
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