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dc.contributor.advisorAndrew J. Whittle.en_US
dc.contributor.authorSaxe, Shoshanna Dawnen_US
dc.contributor.otherMassachusetts Institute of Technology. Dept. of Civil and Environmental Engineering.en_US
dc.date.accessioned2010-05-25T20:55:27Z
dc.date.available2010-05-25T20:55:27Z
dc.date.copyright2009en_US
dc.date.issued2009en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/55158
dc.descriptionThesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2009.en_US
dc.descriptionCataloged from PDF version of thesis.en_US
dc.descriptionIncludes bibliographical references (p. 137-141).en_US
dc.description.abstractGround source heat storage can condition buildings with reduced consumption of fossil fuels, an important issue in modem building design. However, seasonal heat storage can cause soil temperature fluctuations and possibly deformation of soft clays. This thesis evaluates the thermo-mechanical response of soft clays to seasonal heat storage and associated temperature fluctuations. A literature review reveals that, in normally consolidated to lightly overconsolidated clays, increases in soil temperature can lead to significant plastic strains and a reduction in soil strength. This behavior can be modeled through constitutive formulations that include thermal strain within the elasto-plastic framework of the well-known Modified Cam-Clay Model. The current research uses the MCC Picard (1994) model to study the ground response to a buried heat exchange pipe. The spacing of the pipe was found to govern the effectiveness of ground heat storage. With only one pipe in semi-infinite soil, heat transfer to the ground dissipates quickly and thermal-mechanical interaction is negligible; however, seasonal heat storage is not possible. Closely spaced heat pipes would permit effective seasonal heat storage, but could undergo significant thermally induced consolidation deformations.en_US
dc.description.statementofresponsibilityby Shoshanna Dawn Saxe.en_US
dc.format.extent159 p.en_US
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582en_US
dc.subjectCivil and Environmental Engineering.en_US
dc.titleGround source heat storage and thermo-physical response of soft clayen_US
dc.typeThesisen_US
dc.description.degreeS.M.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineering
dc.identifier.oclc607554953en_US


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