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dc.contributor.authorEsmaeili-Falak, M
dc.contributor.authorKatebi, H
dc.contributor.authorJavadi, A
dc.date.accessioned2019-12-16T12:55:44Z
dc.date.issued2020-03-26
dc.description.abstractTo investigate the stress-strain behavior of frozen soils, a program of triaxial compression tests was designed and carried out on samples of unfrozen and frozen cohesive (CL) and granular (SP) soils and pure ice. The experiments involved study of the influence of freezing, temperature reduction and loading rate on the stress-strain characteristics of the frozen ground. The aim of this study is to assess the possibility of using the Artificial Ground Freezing (AGF) technique in the excavation and tunneling in Line 2 of the Tabriz Subway project. The results show that freezing of the CL soil has no significant effect on the type of soil behavior (strain-hardening), while, freezing of the SP soil changes its strain-hardening behavior to strain-softening. The effect of freezing on the increase in shear strength of the saturated SP soil is much greater than that of the saturated CL soil; however, the rate of increase in the shear strength due to freezing and temperature reduction is much larger for the CL soil. Freezing and reduction in temperature cause an increase in the elastic modulus of all the materials tested in the present study. Also, the shear strength and elastic modulus 26 of these materials increase with loading rate.en_GB
dc.description.sponsorshipMinistry of Science of Iranen_GB
dc.identifier.citationVol. 34 (2), article 05020001en_GB
dc.identifier.doi10.1061/(ASCE)CR.1943-5495.0000205
dc.identifier.urihttp://hdl.handle.net/10871/40107
dc.language.isoenen_GB
dc.publisherAmerican Society of Civil Engineers (ASCE)en_GB
dc.rights© 2020 ASCE
dc.subjectFrozen grounden_GB
dc.subjectstress-strain characteristicsen_GB
dc.subjecttriaxial compression testen_GB
dc.subjectstrain hardeningen_GB
dc.subjectstrain softeningen_GB
dc.titleEffect of Freezing on Stress–Strain Characteristics of Granular and Cohesive Soilsen_GB
dc.typeArticleen_GB
dc.date.available2019-12-16T12:55:44Z
dc.identifier.issn0887-381X
dc.descriptionThis is the author accepted manuscript. The final version is available from ASCE via the DOI in this recorden_GB
dc.identifier.journalJournal of Cold Regions Engineeringen_GB
dc.rights.urihttp://www.rioxx.net/licenses/all-rights-reserveden_GB
dcterms.dateAccepted2019-08-28
rioxxterms.versionAMen_GB
rioxxterms.licenseref.startdate2019-08-28
rioxxterms.typeJournal Article/Reviewen_GB
refterms.dateFCD2019-12-16T12:53:46Z
refterms.versionFCDAM
refterms.dateFOA2020-04-23T15:34:50Z
refterms.panelBen_GB


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