- Title
- Hydro-Mechanical Characterization of an Organic Black soil
- Creator
- Suwal, Laxmi; Pineda, Jubert Andres; Kelly, Richard; Morris, B.
- Relation
- 6th International Conference on Geotechnical and Geophysical Site Characterization, ISC6. Proceedings of the 6th International Conference on Geotechnical and Geophysical site Characterization (Budapest, Hungary 26-30 September, 2021)
- Publisher
- Hungarian geotechnical society
- Resource Type
- conference paper
- Date
- 2021
- Description
- This paper presents the results of an experimental study aimed at characterizing the hydraulic and mechanical behavior of the natural 'black' soils from the Liverpool Plains (NSW, Australia). Black soils correspond to the shallow organic and expansive materials that serve as foundation soil for a vast section of the inland freight rail in New South Wales. Black soils are commonly subjected to seasonal moisture variations which generate large changes in suction for soils located at shallow depths. This effect has important consequences not only on the water retention capacity but also on the saturated mechanical properties of the natural soil. The study presented in this paper includes the determination of the Water Retention Curve, the evaluation of the swelling and compressibility behaviour, and the estimation of the drained shear strength parameters. Microstructural analysis is used to evaluate changes in soil fabric upon saturation.
- Subject
- expansive soil; swelling behavior; compressibility; strength; microstructures
- Identifier
- http://hdl.handle.net/1959.13/1440440
- Identifier
- uon:41145
- Language
- eng
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