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Critical State of Sands

Abouzar Sadrekarimi

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ISBN 10: 3639272846 / ISBN 13: 9783639272840
Published by VDM Verlag
New Condition: New Soft cover
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408 pages. Dimensions: 8.8in. x 6.0in. x 1.1in.The present study investigates the shearing behavior of sands pertinent to liquefaction and critical state soil mechanics using an improved ring shear apparatus designed and constructed at the University of Illinois. Undrainedconstant volume and drained triaxial compression and ring shear tests (sheared to about 30 m of shear displacement) were performed on two clean sands and one silty sand. Shear displacements localized when the peak friction angle was mobilized and subsequent shear displacements occurred only within the shear band which was 10 to 14 times median particle diameter, thick. Considerable particle damage and crushing was observed within the shear band, particularly for dilative specimens, which led to volumetric contraction in the shear band. The critical state line (corresponding to the critical state after particle damage and crushing was complete) was much steeper and plotted below conventional critical state lines in the void ratio - effective stress space measured using triaxial tests. Both dense and loose sands reached this final state. Accordingly, two definitions for critical state of sands with and without particle damage are proposed. This item ships from multiple locations. Your book may arrive from Roseburg,OR, La Vergne,TN. Bookseller Inventory # 9783639272840

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Bibliographic Details

Title: Critical State of Sands

Publisher: VDM Verlag

Binding: Paperback

Book Condition:New

Book Type: Paperback

About this title

Synopsis:

The present study investigates the shearing behavior of sands pertinent to liquefaction and critical state soil mechanics using an improved ring shear apparatus designed and constructed at the University of Illinois. Undrained/constant volume and drained triaxial compression and ring shear tests (sheared to about 30 m of shear displacement) were performed on two clean sands and one silty sand. Shear displacements localized when the peak friction angle was mobilized and subsequent shear displacements occurred only within the shear band which was 10 to 14 times median particle diameter, thick. Considerable particle damage and crushing was observed within the shear band, particularly for dilative specimens, which led to volumetric contraction in the shear band. The critical state line (corresponding to the critical state after particle damage and crushing was complete) was much steeper and plotted below conventional critical state lines in the void ratio - effective stress space measured using triaxial tests. Both dense and loose sands reached this final state. Accordingly, two definitions for critical state of sands with and without particle damage are proposed.

About the Author:

Abouzar Sadrekarimi, Ph.D.: Studied Geotechnical Engineering at University of Illinois at Urbana-Champaign. Currently Geotechnical Engineer (EIT) at Golder Associates Ltd., Burnaby, British Columbia, Canada.

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