Multiphysical Testing of Soils and Shales pp 267-271 | Cite as
Meso-scale Oedometer Test System for Volume Change Determination in Problematic Soils
Abstract
This paper describes the development of a Meso-scale Oedometer Test System (MOTS) for investigating the volume change behavior of problematic soils. The de novo test system is designed to measure swelling, collapse, and consolidation properties of 100 times larger than conventional samples. This scale allows for an effective capture of soil structure and for understanding the spatial and temporal variability in volume change. Numerical simulations and load-deformation analyses indicated that the test system can safely be loaded up to 1730 kPa: the deformability of the entire assembly was found to be 4 mm. A preliminary test indicated that the apparatus provides a better estimate of soil volume change.
Keywords
Void Ratio Matric Suction Expansive Clay Conventional Sample Consolidation TestPreview
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References
- Abduljauwad, S.N., Al-Amoudi, O.S.B.: Geotechnical behavior of saline sabkha soils. Geotechnique 45, 425–445 (1995), doi:10.1680/geot.1995.45.3.425CrossRefGoogle Scholar
- Azam, S., Abduljauwad, S.N., Al-Shayea, N.A., Al-Amoudi, O.S.B.: Effects of calcium sulfate on swelling potential of an expansive clay. Geotechnical Testing Journal 23, 389–403 (2000), doi:10.1520/GTJ11060JCrossRefGoogle Scholar
- Imumorin, P., Azam, S.: Effect of precipitation on geologic development of badlands in arid regions. Bulletin of Engineering Geology and the Environment 70, 223–229 (2011), doi:10.1007/s10064-010-0300-4CrossRefGoogle Scholar
- Ito, M., Azam, S.: Determination of swelling and shrinkage properties of undisturbed expansive soils. Geotechnical and Geological Engineering 28, 413–422 (2010), doi:10.1007/s10706-010-9301-0CrossRefGoogle Scholar
- Hu, Y., Hubble, D.W.: Factors contributing to the failure of asbestos cement water mains. Canadian Journal of Civil Engineering 34, 608–621 (2005), doi:10.1139/l06-162CrossRefGoogle Scholar