Reliability of Asoaka method in predicting the end of primary settlement (EOP)
Volume Title: ICASGE2025
Paper ID : 1149-ICASGE-FULL
Authors
Geotechnical Engineering (GEO)
Abstract
This paper examines the Asoaka Method for assessing the value and time of primary settlement, using field data from a decade of settlement monitoring. The Asoaka Method (Asaoka 1978, Jamiolkowski et al. 1985), revisited by Mesri & Huvaj 2009, predicts soil settlement using observed settlement-time data. It uses graphical and mathematical procedures to estimate end-of-primary (EOP) settlement and coefficient of consolidation. Although widely used, the method's accuracy can be affected by factors like time intervals and number of readings, which are sometimes disregarded in typical applications. This study will investigate the observed data in different approaches. Over 10 years of field data provides a solid foundation for implementing the Asoaka Method. Furthermore, the shape of the observed readings curves guides the further monitoring of soil settlement and uncertainties evaluation. Finally, the investigation results direct attention to measure field excess pore water pressure and validate the time rate of consolidation. Settlement, Consolidation, Field Monitoring, Analysis, Uncertainty
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