In this study, the relationship between soil suction and shear strength parameters of
compacted METU campus clay were investigated at different moisture contents. Soil
samples were tested at optimum moisture content (i.e. w=20.8%), at dry side of
optimum moisture content (i.e. w=14.8%, 16.8%, 18.8%) and at wet side of optimum
moisture content (i.e. w=22.8%, 24.8%, 26.8%). Direct shear tests were performed to
measure shear strength parameters (c' / , & / #934 / ' / ) and soil suctions were measured by filter
paper method after direct shear tests. These relationships were also investigated on
soaked samples. The trends for suction, angle of internal friction and cohesion, which
change on the dry side and wet side of optimum moisture content, were analyzed.
The compacted METU campus clay gains granular soil fabric at the dry side of
optimum moisture content. As moisture content increases, cohesion increases up to
optimum moisture content and then decreases. But angle of internal friction
decreases as moisture content increases. Soaking affects the samples more which are on the dry side of optimum moisture content. The soil suction (total suction and
matric suction) affects the shear strength, and an increase in soil suction increases the
shear strength.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/1300425/index.pdf |
| Date | 01 January 2003 |
| Creators | Tilgen, Huseyin Pars |
| Contributors | Cokca, Erdal |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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