Settlement Prediction Based on Measured Data Considering Secondary Consolidation

Abstract

Various methods exist to predict settlement of a soft ground by using measured data. The hyperbolic method is the most popular one. While, the logt method is often used for prediction of the secondary consolidation. It is sometimes difficult to determine the starting time of the logt prediction. The method to identify the parameters of the primary and the secondary consolidation simultaneously is proposed to solve this problem in this study. To verify the applicability of the method, following data sets are analyzed: 1) long term consolidation test results, 2) kaolin clay consolidation test result, 3) undisturbed alluvial marine clay test results, and 4) measured settlement data of an actual soft ground.