Doctoral Dissertations
Abstract
"A considerable amount of research has been conducted on the strength of both clays and sands, while research on low plasticity silt has been limited. The objective of this experimental study is to evaluate the cyclic behavior and liquefaction potential of low plasticity silts. The cyclic behavior of sand-like and clay-like soils have been compared to the cyclic behavior of low plasticity silts.
The soil used in the study program has been obtained from the Mississippi River Valley and consists of modified loessial silt deposits with a plasticity index of about 6. In order to achieve a soil fabric similar to what occurs in natural deposition, samples have been consolidated from slurry inside a large consolidometer and inside a split mold using top and bottom loading. The liquefaction potential of the low plasticity silt specimens have been evaluated using cyclic triaxial tests. The effects of stress history, confinement pressure, anisotropy, and plasticity have been evaluated in order to better understand their cyclic behavior. The study extends to post liquefaction analysis and strength characteristics of liquefied silt. Finally, laboratory CPT and Vane Shear tests were conducted and the results were compared to triaxial test results"--Abstract, page iii.
Advisor(s)
Stephenson, Richard Wesley
Committee Member(s)
Luna, Ronaldo
Rogers, J. David
Ge, Yu-Ning (Louis)
Petry, Thomas M.
Department(s)
Civil, Architectural and Environmental Engineering
Degree Name
Ph. D. in Civil Engineering
Sponsor(s)
United States. Bureau of Reclamation
Publisher
Missouri University of Science and Technology
Publication Date
Spring 2008
Pagination
xiv, 306 pages
Note about bibliography
Includes bibliographical references (pages 298-305).
Rights
© 2008 Ali Mohammad Izadi, All rights reserved.
Document Type
Dissertation - Restricted Access
File Type
text
Language
English
Subject Headings
SiltSoil liquefactionSoil mechanicsSoils -- Plastic properties
Thesis Number
T 9386
Print OCLC #
261544269
Electronic OCLC #
926103736
Recommended Citation
Izadi, Ali Mohammad, "Liquefaction and postliquefaction behavior of low plasticity silts using cyclic triaxial tests" (2008). Doctoral Dissertations. 1756.
https://scholarsmine.mst.edu/doctoral_dissertations/1756
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