Shear and creep behaviour of frozen granular soils under compressive and tensile loading

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Publication Title
Shear and creep behaviour of frozen granular soils under compressive and tensile loading

Abstract
The mechanical behaviour of frozen soils currently gets progressively into the focus of fundamental research and is an ongoing challenge in the increasing use of artificial ground freezing as well as in the context of the thawing and refreezing of permafrost due to global warming. In both cases, frozen soils exhibit shear and creep deformation resulting from both compressive and tensile loading. However, relatively few experimental studies deal with the tensile shear and creep behaviour of frozen soils compared to investigations under compressive loading. Therefore, this study presents a comprehensive investigation of the tensile behaviour of frozen granular soils, including uniaxial shear and creep tests at various temperatures under compressive and tensile loading. Evaluation of the test data and comparison with data from the literature reveal the fundamental characteristics of two different frozen granular soils under tensile loading and highlight their essential differences from behaviour under compression. Overall, this comprehensive study aims to contribute to a more fundamental understanding of frozen soils' complex mechanical behaviour under both compressive and tensile loading.
Authors
Ulrich Schindler; Stylianos Chrisopoulos; Stefan Vogt; Roberto Cudmani

Published In

18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)

Theme

A - New developments on structural design

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