A subsurface investigation in Taylor clay

dc.contributor.advisorEl Mohtar, Chadi Saiden
dc.contributor.committeeMemberGilbert, Robert B.en
dc.creatorEllis, Trenton Blakeen
dc.date.accessioned2011-09-29T15:26:40Zen
dc.date.available2011-09-29T15:26:40Zen
dc.date.issued2011-08en
dc.date.submittedAugust 2011en
dc.date.updated2011-09-29T15:27:21Zen
dc.descriptiontexten
dc.description.abstractA comprehensive field and laboratory investigation at the location of the Lymon C. Reese Research Wall is presented. Soil at the site is a stiff, fissured and heavily overconsolidated clay from the Taylor Group. Index properties such as Atterberg limits and clay fractions were used with common empirical guidelines to assess the qualitative swell potential. The soil's compressibility and strength characteristics were difficult to measure in the lab, owing to the stiff soil's secondary structure. Measured values were compared to well established correlations and test results from similar soils sampled from locations near the present test site. Cyclic swell tests were to predict the soil's lateral swell potential after multiple cycles of wetting and drying. Empirical guidelines indicated the soil has a "high" to "very high" swell potential. This was validated by the swelling that was observed during consolidation and cyclic swell tests. The soil's drained and undrained strengths were both rather large, often more typical of rock than soil. The stress history was not evident from consolidation results, either due to disturbance, cementation or extreme overconsolidation. The hydraulic conductivity was particularly elusive, again due to the soil's secondary structure.en
dc.description.departmentCivil, Architectural, and Environmental Engineeringen
dc.format.mimetypeapplication/pdfen
dc.identifier.slug2152/ETD-UT-2011-08-3973en
dc.identifier.urihttp://hdl.handle.net/2152/ETD-UT-2011-08-3973en
dc.language.isoengen
dc.subjectExpansive soilsen
dc.subjectStiff fissured claysen
dc.subjectTaylor clayen
dc.titleA subsurface investigation in Taylor clayen
dc.type.genrethesisen
thesis.degree.departmentCivil, Architectural, and Environmental Engineeringen
thesis.degree.disciplineCivil Engineeringen
thesis.degree.grantorUniversity of Texas at Austinen
thesis.degree.levelMastersen
thesis.degree.nameMaster of Science in Engineeringen
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