Overconsolidation and cementation in sands: Impacts on geotechnical properties and evaluation using dilatometer tests

Hyunwook Choo, Woojin Lee, Changho Lee

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    Both overconsolidated and cemented soils, which are very common in nature, show very distinctive behaviors (e.g., increased strength and stiffness) compared to normally consolidated (NC) soils, uncemented soils, or both. Therefore, the characterization of soil properties in an overconsolidated/cemented state is important in many geotechnical projects for the safe and economical design and analysis of geostructures. Although there have been many attempts to evaluate overconsolidated or cemented sediments using in situ tests, the complexity of the behaviors of overconsolidated or cemented sands has contributed to the difficulty in interpreting in situ test results. Among the various in situ testing methods, such as the cone penetration test, the dilatometer test (DMT), the standard penetration test, and others, the DMT is very sensitive to the stress history effect and overconsolidation in sand. Therefore, the impacts of overconsolidation and cementation on geotechnical properties of sands are reviewed first in this study, and then the methods for evaluating overconsolidation and cementation in sands using DMTs are reviewed/suggested.

    Original languageEnglish
    Pages (from-to)915-929
    Number of pages15
    JournalGeotechnical Testing Journal
    Volume41
    Issue number5
    DOIs
    Publication statusPublished - 2018 Jul 1

    Bibliographical note

    Funding Information:
    This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2015R1A2A2A01006337).

    Publisher Copyright:
    Copyright © 2018 by ASTM International.

    Keywords

    • Cementation
    • Cemented sand
    • Dilatometer test
    • Overconsolidated sand
    • Overconsolidation ratio

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology

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