Comparison of direct simple shear confinement methods on clay and silt specimens
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Authors
McGuire, Seth T.
Subjects
Advisors
Date of Issue
2011
Date
2011
Publisher
Monterey California. Naval Postgraduate School
Language
en_US
Abstract
ASTM D2435 (2000) allows for both Teflon coated stacked rings and wire reinforced membranes to be used as confinement methods in direct simple shear (DSS) testing of soils. Although stacked rings were developed over 50 years ago, wire reinforced membranes have been used almost exclusively in practice. Over the past 10 years, however, stacked rings have become more popular and are now the dominant confinement system sold and used in the United States. Despite this change, no comprehensive testing program comparing both confinement methods has been published. The objective of this thesis is to perform a laboratory testing program to compare the results of using stacked rings and wire reinforced membranes as a confining system for direct simple shear tests. Tests were performed on samples of a high plasticity clay from the Gulf of Mexico, a low plasticity organic silt from Rhode Island, and a low plasticity sensitive clay from Portland, Maine.
Type
Thesis
Description
CIVINS (Civilian Institutions) Thesis document
Series/Report No
Department
Ocean Engineering
Organization
Identifiers
NPS Report Number
Sponsors
Funder
U.S. Naval Postgraduate School, CIVINS program
Format
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.