Soil Parameters of Kallang Formation and Old Alluvium in Singapore for Excavation Study with Plaxis
Publication: Practice Periodical on Structural Design and Construction
Volume 27, Issue 2
Abstract
Plaxis is a software program widely used in Singapore for the analysis of excavation problems in the Kallang Formation and the Old Alluvium. The present study showed that the soft soil creep model was the most appropriate for excavation study of a retaining wall with a stabilizing berm in the estuarine deposit and the upper and lower marine clays of the Kallang Formation, and the hardening soil model was the most appropriate for the fill, fluvial deposits, and Old Alluvium in Singapore using Plaxis. The appropriate values of soil parameters of the estuarine deposits, fluvial deposits, Kallang Formation, and Old Alluvium for excavation study required by the hardening soil and the soft soil creep models will be summarized based on the summary of design parameters of a detailed geotechnical study and a literature review of the appropriate values reported in the literature for each soil layer. The validity of using such values for Plaxis analysis will be confirmed by a comparison of the predicted deflection of a diaphragm wall with the field measurement. The appropriate values of soil parameters of the estuarine deposits, fluvial deposits, Kallang Formation, and Old Alluvium for excavation study required by the hardening soil and the soft soil creep models will be very useful for practicing engineers.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
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Published In
Practice Periodical on Structural Design and Construction
Volume 27 • Issue 2 • May 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Nov 30, 2020
Accepted: Oct 30, 2021
Published online: Feb 7, 2022
Published in print: May 1, 2022
Discussion open until: Jul 7, 2022
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