Show simple item record

dc.contributor.authorXu, Changweien
dc.contributor.authorCebon, Daviden
dc.date.accessioned2016-12-09T12:51:51Z
dc.date.available2016-12-09T12:51:51Z
dc.date.issued2017-06en
dc.identifier.issn0733-9399
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/261507
dc.description.abstractLoss of support as a result of voids underneath concrete slabs can initiate and propagate slab cracking in jointed plain concrete pavements. This paper investigates the hypothesis that foundation voiding occurs because of localized plastic deformation of the depressurized foundation as a result of slab curling and repeated application of traffic loads. Plane strain and three-dimensional (3D) nonlinear finite-element models of the subgrade foundation are presented. The analysis shows that voids underneath concrete slabs usually occur along the edge of slabs adjacent to the shoulder. The sizes of voids are primarily determined by foundation properties (cohesion stress and internal friction angle), slab properties, axle loads, and temperature gradients. Voids along the edge of slabs adjacent to the shoulder lead to high transverse tensile stresses on the top surface, which may result in top-down longitudinal cracking close to the outer wheel path. These same voids increase the longitudinal tensile stresses on the bottom surface at the edge of the slabs, which can increase the potential for bottom-up transverse cracking at the middle of the slabs.
dc.description.sponsorshipCambridge Overseas Trust/China Scholarship Council
dc.language.isoenen
dc.publisherAmerican Society of Civil Engineers
dc.subjectfoundation voidingen
dc.subjectslab curlingen
dc.subjectpremature slab crackingen
dc.subjectdepressurised foundationen
dc.subjecttemperature gradienten
dc.titleFoundation Voiding in Jointed Plain Concrete Pavementsen
dc.typeArticle
prism.issueIdentifier6en
prism.number04017018en
prism.publicationDate2017en
prism.publicationNameJournal of Engineering Mechanics - ASCEen
prism.volume143en
dc.identifier.doi10.17863/CAM.6703
dcterms.dateAccepted2016-10-04en
rioxxterms.versionofrecord10.1061/(ASCE)EM.1943-7889.0001209en
rioxxterms.versionAMen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2017-06en
dc.contributor.orcidCebon, David [0000-0003-2828-6445]
dc.identifier.eissn1943-7889
rioxxterms.typeJournal Article/Reviewen
cam.issuedOnline2017-06en


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record