| Issue |
E3S Web Conf.
Volume 205, 2020
2nd International Conference on Energy Geotechnics (ICEGT 2020)
|
|
|---|---|---|
| Article Number | 08002 | |
| Number of page(s) | 6 | |
| Section | Minisymposium: Solid-Fluid Interactions in Emerging Energy Geo-Systems (organized by Shahrzad Roshankhah and Seunghee Kim) | |
| DOI | https://doi.org/10.1051/e3sconf/202020508002 | |
| Published online | 18 November 2020 | |
Thermal volume changes of saturated sand during loading-unloading-heating phase
1 School of Architectural Engineering, Neijiang Normal University, Sichuan, 641100, China.
2 Department of Structural Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0085, USA.
3 School of Civil Engineering, Chongqing University, Chongqing, 400045, China.
* Corresponding author: hhuxyanson@163.com
The influence of temperature on the volume change of loose, saturated sand was assessed through a series of temperature-controlled hollow-cylinder triaxial tests. The sand specimens were isotropically compressed and unloaded to induce an overconsolidation effect, then subjected to drained heating. During drained heating, water was expelled from the sand specimens and the thermally-induced axial and volumetric strains were negative, reflecting isotropic expansion.
© The Authors, published by EDP Sciences, 2020
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