Evaluation of Soil Shear Strength Parameters Via Triaxial Testing by Height Versus Diameter Ratio of Sample

The triaxial test is a most widely used laboratory method for determining the soil shear strength. It is assumed that a soil sample deforms uniformly during triaxial testing. But one often faces a case when the sample in the triaxial apparatus deforms on the contrary. The non-uniformity can be cause...

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Main Authors: Jonas Amšiejus, Neringa Dirgėlienė, Arnoldas Norkus, Daiva Žilionienė
Format: Article
Language:English
Published: RTU Press 2009-06-01
Series:The Baltic Journal of Road and Bridge Engineering
Subjects:
Online Access:https://bjrbe-journals.rtu.lv/article/view/3809
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author Jonas Amšiejus
Neringa Dirgėlienė
Arnoldas Norkus
Daiva Žilionienė
author_facet Jonas Amšiejus
Neringa Dirgėlienė
Arnoldas Norkus
Daiva Žilionienė
author_sort Jonas Amšiejus
collection DOAJ
description The triaxial test is a most widely used laboratory method for determining the soil shear strength. It is assumed that a soil sample deforms uniformly during triaxial testing. But one often faces a case when the sample in the triaxial apparatus deforms on the contrary. The non-uniformity can be caused by the end restraining effect, the sample height influence factor, the insufficient drainage, the membrane effect and the sample self-weight factor etc. An analysis of known investigations lead to the following tools that could be employed for reducing an inaccuracy related to the non-uniform stress-strain distribution per soil sample during triaxial testing: reducing the sample height/diameter ratio from 2 to 1, eliminating the friction between the sample ends and the plates. Having not eliminated the above - mentioned influence, factors during the testing procedure the angle of internal friction φ and the cohesion c for the sample of φ ≠ 0 are determined larger than the actual ones. The method for determining the angle of internal friction φ and the cohesion c, when testing the soil sample of height/diameter H/D = 1 is proposed.
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spelling doaj.art-b20600df2a494f16bb55934a081ce9ac2022-12-21T20:22:16ZengRTU PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882009-06-0142546010.3846/1822-427X.2009.4.54-602139Evaluation of Soil Shear Strength Parameters Via Triaxial Testing by Height Versus Diameter Ratio of SampleJonas Amšiejus0Neringa Dirgėlienė1Arnoldas Norkus2Daiva Žilionienė3Dept of Geotechnical Engineering, Vilnius Gediminas Technical University, Saulėtekio al. 11, 10223 Vilnius, LithuaniaDept of Geotechnical Engineering, Vilnius Gediminas Technical University, Saulėtekio al. 11, 10223 Vilnius, LithuaniaDept of Geotechnical Engineering, Vilnius Gediminas Technical University, Saulėtekio al. 11, 10223 Vilnius, LithuaniaDept of Roads, Vilnius Gediminas Technical University, Saulėtekio al. 11, 10223 Vilnius, LithuaniaThe triaxial test is a most widely used laboratory method for determining the soil shear strength. It is assumed that a soil sample deforms uniformly during triaxial testing. But one often faces a case when the sample in the triaxial apparatus deforms on the contrary. The non-uniformity can be caused by the end restraining effect, the sample height influence factor, the insufficient drainage, the membrane effect and the sample self-weight factor etc. An analysis of known investigations lead to the following tools that could be employed for reducing an inaccuracy related to the non-uniform stress-strain distribution per soil sample during triaxial testing: reducing the sample height/diameter ratio from 2 to 1, eliminating the friction between the sample ends and the plates. Having not eliminated the above - mentioned influence, factors during the testing procedure the angle of internal friction φ and the cohesion c for the sample of φ ≠ 0 are determined larger than the actual ones. The method for determining the angle of internal friction φ and the cohesion c, when testing the soil sample of height/diameter H/D = 1 is proposed.https://bjrbe-journals.rtu.lv/article/view/3809triaxial testingsoil shear strength parametersangle of internal frictioncohesionheight/diameter ratio of sample
spellingShingle Jonas Amšiejus
Neringa Dirgėlienė
Arnoldas Norkus
Daiva Žilionienė
Evaluation of Soil Shear Strength Parameters Via Triaxial Testing by Height Versus Diameter Ratio of Sample
The Baltic Journal of Road and Bridge Engineering
triaxial testing
soil shear strength parameters
angle of internal friction
cohesion
height/diameter ratio of sample
title Evaluation of Soil Shear Strength Parameters Via Triaxial Testing by Height Versus Diameter Ratio of Sample
title_full Evaluation of Soil Shear Strength Parameters Via Triaxial Testing by Height Versus Diameter Ratio of Sample
title_fullStr Evaluation of Soil Shear Strength Parameters Via Triaxial Testing by Height Versus Diameter Ratio of Sample
title_full_unstemmed Evaluation of Soil Shear Strength Parameters Via Triaxial Testing by Height Versus Diameter Ratio of Sample
title_short Evaluation of Soil Shear Strength Parameters Via Triaxial Testing by Height Versus Diameter Ratio of Sample
title_sort evaluation of soil shear strength parameters via triaxial testing by height versus diameter ratio of sample
topic triaxial testing
soil shear strength parameters
angle of internal friction
cohesion
height/diameter ratio of sample
url https://bjrbe-journals.rtu.lv/article/view/3809
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AT arnoldasnorkus evaluationofsoilshearstrengthparametersviatriaxialtestingbyheightversusdiameterratioofsample
AT daivazilioniene evaluationofsoilshearstrengthparametersviatriaxialtestingbyheightversusdiameterratioofsample