Volume Change Measurements for Unsaturated Soils in Triaxial Equipment with Double Wall Cell

The paper gives a brief description of double wall cell triaxial equipment for testing soil samples under unsaturated conditions and presents results of some of the calibrations necessary to achieve accurate measurements of inner cell water volume, pore water volume, pressure, load and displacement....

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Main Authors: Muayad A. Al-Sharrad, Domenico Gallipoli, Simon J. Wheeler
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2013-11-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_83738_478a03a46919c7cfbaa97803cc7e9167.pdf
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author Muayad A. Al-Sharrad
Domenico Gallipoli
Simon J. Wheeler
author_facet Muayad A. Al-Sharrad
Domenico Gallipoli
Simon J. Wheeler
author_sort Muayad A. Al-Sharrad
collection DOAJ
description The paper gives a brief description of double wall cell triaxial equipment for testing soil samples under unsaturated conditions and presents results of some of the calibrations necessary to achieve accurate measurements of inner cell water volume, pore water volume, pressure, load and displacement. The calibration of the measurement devices showed linear relationships between the raw readings and applied values with the regression constants differ from 1 and 0. The result of apparent volume change calibrations showed significant correlation between cell water volume fluctuation and temperature fluctuation inside testing room. A correction to the measured volume was therefore required to reduce the effects of long-term temperature fluctuation on the measured volume. Investigation of the accuracy of volume change measurement with the double wall cell showed excellent matching between the inner cell volume change and pore water volume change under saturated conditions, indicating the high reliability of the double wall system for apparent volume change measurements.
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spelling doaj.art-711e5c8815314911a897b183d0eda1a32024-02-04T17:36:58ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582013-11-01311917318410.30684/etj.31.19A.1383738Volume Change Measurements for Unsaturated Soils in Triaxial Equipment with Double Wall CellMuayad A. Al-SharradDomenico GallipoliSimon J. WheelerThe paper gives a brief description of double wall cell triaxial equipment for testing soil samples under unsaturated conditions and presents results of some of the calibrations necessary to achieve accurate measurements of inner cell water volume, pore water volume, pressure, load and displacement. The calibration of the measurement devices showed linear relationships between the raw readings and applied values with the regression constants differ from 1 and 0. The result of apparent volume change calibrations showed significant correlation between cell water volume fluctuation and temperature fluctuation inside testing room. A correction to the measured volume was therefore required to reduce the effects of long-term temperature fluctuation on the measured volume. Investigation of the accuracy of volume change measurement with the double wall cell showed excellent matching between the inner cell volume change and pore water volume change under saturated conditions, indicating the high reliability of the double wall system for apparent volume change measurements.https://etj.uotechnology.edu.iq/article_83738_478a03a46919c7cfbaa97803cc7e9167.pdfunsaturated soilsdouble wall triaxial cellvolume change measurement
spellingShingle Muayad A. Al-Sharrad
Domenico Gallipoli
Simon J. Wheeler
Volume Change Measurements for Unsaturated Soils in Triaxial Equipment with Double Wall Cell
Engineering and Technology Journal
unsaturated soils
double wall triaxial cell
volume change measurement
title Volume Change Measurements for Unsaturated Soils in Triaxial Equipment with Double Wall Cell
title_full Volume Change Measurements for Unsaturated Soils in Triaxial Equipment with Double Wall Cell
title_fullStr Volume Change Measurements for Unsaturated Soils in Triaxial Equipment with Double Wall Cell
title_full_unstemmed Volume Change Measurements for Unsaturated Soils in Triaxial Equipment with Double Wall Cell
title_short Volume Change Measurements for Unsaturated Soils in Triaxial Equipment with Double Wall Cell
title_sort volume change measurements for unsaturated soils in triaxial equipment with double wall cell
topic unsaturated soils
double wall triaxial cell
volume change measurement
url https://etj.uotechnology.edu.iq/article_83738_478a03a46919c7cfbaa97803cc7e9167.pdf
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AT domenicogallipoli volumechangemeasurementsforunsaturatedsoilsintriaxialequipmentwithdoublewallcell
AT simonjwheeler volumechangemeasurementsforunsaturatedsoilsintriaxialequipmentwithdoublewallcell