Research Article
Sep 1964
Consolidation Testing with Back Pressure
This article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYPublication: Journal of the Soil Mechanics and Foundations Division
Volume 90, Issue 5
Abstract
It is important that laboratory tests on soils saturated in situ be performed on fully saturated specimens. The use of back pressure, common in triaxial testing, has been extended to consolidation testing. A new consolidometer developed for tests with and without back pressure is fully described and back pressure testing procedures are outlined. Comparative tests on one organic silt indicate that the coefficients of consolidation from the back pressure test are lower than those from the standard test below the preconsolidation load; above this load they are equal. Tests on a second organic silt indicate values from the back pressure test are higher throughout the load range. Differences are attributed to air bubbles in the pore water of standard test specimens. Bubbles decrease permeability and alter the rate of pore pressure dissipation. Use of back pressure causes the air to be dissolved in the water and eliminates the initial compression commonly found in time-compression curves from standard tests. Additional research is needed to substantiate these findings.
Get full access to this article
View all available purchase options and get full access to this article.
Information & Authors
Information
Published In
Journal of the Soil Mechanics and Foundations Division
Volume 90 • Issue 5 • September 1964
Pages: 69 - 86
Copyright
© 1964 American Society of Civil Engineers.
History
Published in print: Sep 1964
Published online: Feb 12, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
John Lowe III, F.ASCE
Partner, Tippetts-Abbett-McCarthy-Stratton, New York, N.Y.
Philip F. Zaccheo, M.ASCE
Senior Soils Engr., Tippetts-Abbett-McCarthy-Stratton, New York, N.Y.
Harvey S. Feldman
Head of Soils Lab., Tippetts-Abbett-McCarthy-Stratton, New York, N.Y.
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.