Abstract
This paper presents a new numerical analysis method for one-dimensional, large strain compression of a single undrained, unsaturated soil element. The method builds on the framework of the consolidation model, CS2, which has been used successfully for many consolidation-related engineering applications. In this work, soil properties and relationships are used to model undrained compression from first principles. A numerical study is performed to investigate the effect of increasing applied total stress on element compression and corresponding soil properties. Results indicate that volume change is non-linear and, as the element approaches saturation, an increase in total stress yields a nearly equivalent increase in pore air pressure. Ultimately, this work will serve as a point of departure for the development of a new large strain consolidation model for unsaturated soil.
Original language | English (US) |
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Pages (from-to) | 313-322 |
Number of pages | 10 |
Journal | Geotechnical Special Publication |
Volume | 2017-November |
Issue number | GSP 303 |
DOIs | |
State | Published - Jan 1 2018 |
Event | 2nd Pan-American Conference on Unsaturated Soils: Swell-Shrink and Tropical Soils, PanAm-UNSAT 2017 - Dallas, United States Duration: Nov 12 2017 → Nov 15 2017 |
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Architecture
- Building and Construction
- Geotechnical Engineering and Engineering Geology