Piezocone testing in underconsolidated clay
| Autor: | Toshihiko Sakagami, Yasuo Tanaka |
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| Rok vydání: | 1989 |
| Předmět: | |
| Zdroj: | Canadian Geotechnical Journal. 26:563-567 |
| ISSN: | 1208-6010 0008-3674 |
| DOI: | 10.1139/t89-069 |
| Popis: | This paper describes the results of piezocone testing that was carried out in underconsolidated soft marine clay in Osaka Bay. The obtained profiles of the tip resistance and the pore-water pressure were quite different from those for clay strata of normally consolidated state. It was apparent that a different approach is needed to interpret the test results for underconsolidated clay. The dissipation tests with the piezocone were performed at different elevations and indicated the excess pore-water pressures remaining in the stratum.The depth profile of excess pore pressure of underconsolidated clay is of special importance to the understanding of the degree of consolidation of the stratum. An effort was made in this paper to assess the excess pore pressures remaining in the clay based on the piezocone data obtained during penetration. An examination was made of available piezocone data of similar marine clays, of both normally consolidated and underconsolidated states. Based on this, a method was proposed for predicting the profile of pore-water pressure in underconsolidated clay using the piezocone data obtained during penetration. Key words: piezocone, field test, underconsolidated clay, excess pore-water pressure, interpretation. |
| Databáze: | OpenAIRE |
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