- Title
- Sample quality examination on silty soils
- Creator
- Arroyo, M.; Pineda, J. A.; Sau, N.; Devincenzi, M.; Pérez, N.
- Relation
- XVI European Conference on Soil Mechanics and Geotechnical Engineering (XVI ECSMGE 2015). Geotechnical Engineering for Infrastructure and Development: XVI European Conference on Soil Mechanics and Geotechnical Engineering (Edinburgh, UK 13-17 September 2015) p. 2873-2878
- Publisher Link
- http://dx.doi.org/10.1680/ecsmge.60678.vol6.445
- Publisher
- ICE Publishing
- Resource Type
- conference paper
- Date
- 2015
- Description
- Mediterranean deltaic environments typically produce soil deposits in which silts dominate, granular intercalations are frequent and the mineralogy includes an important carbonate fraction. One question still open is what sampling methods are most appropriate to recover undisturbed samples from these deposits and how best to evaluate disturbance on samples recovered from them. In this paper we present results from a testing campaign on silty deposits in which several sampling methods (Sherbrooke, Osterberg, Shelby) were used to recover sandy and silty clay samples from a Holocene lagoon deposit. Sample quality is established on oedometric specimens using normalized void ratio change on reconsolidation, comparisons of laboratory and field shear wave velocity and the ratio of suction to vertical « In situ » effective stress. Normalized void ratio change and shear wave based criteria are in agreement, and more so if the laboratory measurements are taken just after resaturation. The ratio of suction to normalised vertical effective stress shows no clear relation with normalized void ratio change.
- Subject
- silty soils; soil deposits; sampling methods
- Identifier
- http://hdl.handle.net/1959.13/1315844
- Identifier
- uon:23008
- Identifier
- ISBN:9780727760678
- Language
- eng
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