<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The paper presents the identification methodology of anisotropic criteria based on triaxial test results. The considered material is varved clay – a sedimentary soil occurring in central Poland which is characterized by the so-called “layered microstructure”. The strength examination outcomes were identified by standard triaxial tests. The results include the estimated peak strength obtained for a wide range of orientations and confining pressures. Two models were chosen as potentially adequate for the description of the tested material, namely Pariseau and its conjunction with the Jaeger weakness plane. Material constants were obtained by fitting the model to the experimental results. The identification procedure is based on the least squares method. The optimal values of parameters are searched for between specified bounds by sequentially decreasing the distance between points and reducing the length of the searched range. For both considered models the optimal parameters have been obtained. The comparison of theoretical and experimental results as well as the assessment of the suitability of selected criteria for the specified range of confining pressures are presented.</p></abstract>

The paper presents the identification methodology of anisotropic criteria based on triaxial test results. The considered material is varved clay – a sedimentary soil occurring in central Poland which is characterized by the so-called “layered microstructure”. The strength examination outcomes were identified by standard triaxial tests. The results include the estimated peak strength obtained for a wide range of orientations and confining pressures. Two models were chosen as potentially adequate for the description of the tested material, namely Pariseau and its conjunction with the Jaeger weakness plane. Material constants were obtained by fitting the model to the experimental results. The identification procedure is based on the least squares method. The optimal values of parameters are searched for between specified bounds by sequentially decreasing the distance between points and reducing the length of the searched range. For both considered models the optimal parameters have been obtained. The comparison of theoretical and experimental results as well as the assessment of the suitability of selected criteria for the specified range of confining pressures are presented.

Identification of Anisotropic Criteria for Stratified Soil Based on Triaxial Tests Results

Wrocław University of Science and Technology

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The paper presents the identification methodology of anisotropic criteria based on triaxial test results. The considered material is varved clay – a...

Identification of Anisotropic Criteria for Stratified Soil Based on Triaxial Tests Results

Published Online: Nov 18, 2017

Page range: 59 - 65

DOI: https://doi.org/10.1515/sgem-2017-0030

Keywords
strength, anisotropy, varved clay, Pariseau criterion, weakness plane

© 2017 Matylda Tankiewicz et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Identification of Anisotropic Criteria for Stratified Soil Based on Triaxial Tests Results

Published Online: Nov 18, 2017

Page range: 59 - 65

DOI: https://doi.org/10.1515/sgem-2017-0030

Keywordsstrength, anisotropy, varved clay, Pariseau criterion, weakness plane

© 2017 Matylda Tankiewicz et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
strength, anisotropy, varved clay, Pariseau criterion, weakness plane