TY - GEN
T1 - CPTU dissipation behavior of overconsolidated clay
AU - Lee, W. J.
AU - Kim, T. J.
AU - Kim, S. I.
PY - 2005
Y1 - 2005
N2 - In normally clays and silts, excess pore pressures due to piezocone penetration show a monotonically decreasing response with time, but dissipation tests performed in heavily overconsolidated soils show dilatory behavior. Therefore, available solutions proposed for normally consolidated soils do not adequately evaluate the response of pore water pressure in overconsolidated soils. In order to predict the coefficient of consolidation in non-standard dissipation curve, the distribution characteristics of individual excess pore pressure components (Δu oct & Δu shear) are studied. The influence zones of the octahedral and shear components due to penetration are estimated by theoretical framework and experimental method. In this study, the predicted distribution results at OCR=10 and OCR=20 are compared by the piezocone penetration results in Korea University Calibration Chamber.
AB - In normally clays and silts, excess pore pressures due to piezocone penetration show a monotonically decreasing response with time, but dissipation tests performed in heavily overconsolidated soils show dilatory behavior. Therefore, available solutions proposed for normally consolidated soils do not adequately evaluate the response of pore water pressure in overconsolidated soils. In order to predict the coefficient of consolidation in non-standard dissipation curve, the distribution characteristics of individual excess pore pressure components (Δu oct & Δu shear) are studied. The influence zones of the octahedral and shear components due to penetration are estimated by theoretical framework and experimental method. In this study, the predicted distribution results at OCR=10 and OCR=20 are compared by the piezocone penetration results in Korea University Calibration Chamber.
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M3 - Conference contribution
AN - SCOPUS:84868591968
SN - 9059660285
SN - 9789059660281
T3 - Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering: Geotechnology in Harmony with the Global Environment
SP - 717
EP - 719
BT - Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering
T2 - 16th International Conference on Soil Mechanics and Geotechnical Engineering: Geotechnology in Harmony with the Global Environment, ICSMGE 2005
Y2 - 12 September 2005 through 16 September 2005
ER -