Age of Soils: A Measure of Creep History

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atmire.migration.oldid6061
dc.contributor.advisorWong, Ron Chik-Kwong
dc.contributor.authorGuo, Junwei
dc.contributor.committeememberWan, Richard
dc.contributor.committeememberPriest, Jeffrey
dc.contributor.committeememberSudak, Les
dc.date.accessioned2017-09-27T19:01:03Z
dc.date.available2017-09-27T19:01:03Z
dc.date.issued2017
dc.date.submitted2017en
dc.description.abstractTime-dependent behaviors of soils are critical for engineering design. Results of one-dimensional (1-D) constant rate of strain (CRS) tests on clays show that there is an existence of unique relationship between current stress and strain state for a given constant strain rate, irrespective to previous stress-strain-time history. In the present study, this relationship is employed to estimate the creep rate during the CRS test. It is found that the creep rate is consistently related to distance from current stress-strain state to the instant compression line, which is the creep void ratio or creep history, termed age of soils. Based on the creep rate as a function of creep strain or age of soils, the stress relaxation rate function is derived through the correspondence principle. Age contours are iso-creep rate lines defining the creep rate field in stress-strain space. Creep Balanced State equation states that CRS path will converge to a iso-creep rate line. This equation is used to determine the CRS path and quantify the rate effect on preconsolidation pressure. Age- and pressure-dependent secondary compression coefficients are incorporated in the above framework.en_US
dc.identifier.citationGuo, J. (2017). Age of Soils: A Measure of Creep History (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/24743en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/24743
dc.identifier.urihttp://hdl.handle.net/11023/4144
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectEngineering--Civil
dc.subjectGeotechnology
dc.subject.otherTime-dependent behaviors
dc.subject.otherstress-strain-time relationship
dc.subject.othercreep history
dc.subject.otheriso-creep rate lines
dc.subject.otherage contours
dc.subject.otherCreep Balanced State equation
dc.titleAge of Soils: A Measure of Creep History
dc.typemaster thesis
thesis.degree.disciplineCivil Engineering
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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