Use of the dilatometer test to estimate the maximum shear modulus of normally consolidated Busan clay

Hyunwook Choo; Sung Jin Hong; Woojin Lee; Changho Lee

doi:10.1080/1064119X.2018.1458927

Use of the dilatometer test to estimate the maximum shear modulus of normally consolidated Busan clay

Hyunwook Choo, Sung Jin Hong, Woojin Lee, Changho Lee

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The aim of this experimental study is to estimate the maximum shear modulus (G_max) of normally consolidated clayey soils using the results of a dilatometer test (DMT). A series of DMTs was conducted at the Busan New Port and Noksan sites in South Korea. In addition, basic index tests, bender element tests (i.e., shear wave velocity (V_s) measurements), and standard 1-D consolidation tests were performed using the undisturbed specimens. The results demonstrate that the G_max of normally consolidated Busan clays cannot be adequately captured by the horizontal stress index (K_D)-based empirical formula. Therefore, a G_max estimating formula for normally consolidated clayey soils is newly suggested in this study using the dilatometer constrained modulus (M_DMT) and stress-normalized material index (I_D). Most notably, the estimated G_max values using the suggested formula are comparable with the measured G_max of both this study and the previous study on normally consolidated clayey soils.

Original language	English
Pages (from-to)	547-557
Number of pages	11
Journal	Marine Georesources and Geotechnology
Volume	37
Issue number	5
DOIs	https://doi.org/10.1080/1064119X.2018.1458927
Publication status	Published - 2019 May 28

Bibliographical note

Publisher Copyright:
© 2018, © 2018 Taylor & Francis.

Keywords

Constrained modulus
dilatometer test
maximum shear modulus
normally consolidated clay
shear wave velocity

ASJC Scopus subject areas

Oceanography
Geotechnical Engineering and Engineering Geology
Ocean Engineering

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10.1080/1064119X.2018.1458927

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title = "Use of the dilatometer test to estimate the maximum shear modulus of normally consolidated Busan clay",

abstract = "The aim of this experimental study is to estimate the maximum shear modulus (Gmax) of normally consolidated clayey soils using the results of a dilatometer test (DMT). A series of DMTs was conducted at the Busan New Port and Noksan sites in South Korea. In addition, basic index tests, bender element tests (i.e., shear wave velocity (Vs) measurements), and standard 1-D consolidation tests were performed using the undisturbed specimens. The results demonstrate that the Gmax of normally consolidated Busan clays cannot be adequately captured by the horizontal stress index (KD)-based empirical formula. Therefore, a Gmax estimating formula for normally consolidated clayey soils is newly suggested in this study using the dilatometer constrained modulus (MDMT) and stress-normalized material index (ID). Most notably, the estimated Gmax values using the suggested formula are comparable with the measured Gmax of both this study and the previous study on normally consolidated clayey soils.",

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author = "Hyunwook Choo and Hong, {Sung Jin} and Woojin Lee and Changho Lee",

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AU - Choo, Hyunwook

AU - Hong, Sung Jin

AU - Lee, Woojin

AU - Lee, Changho

PY - 2019/5/28

Y1 - 2019/5/28

N2 - The aim of this experimental study is to estimate the maximum shear modulus (Gmax) of normally consolidated clayey soils using the results of a dilatometer test (DMT). A series of DMTs was conducted at the Busan New Port and Noksan sites in South Korea. In addition, basic index tests, bender element tests (i.e., shear wave velocity (Vs) measurements), and standard 1-D consolidation tests were performed using the undisturbed specimens. The results demonstrate that the Gmax of normally consolidated Busan clays cannot be adequately captured by the horizontal stress index (KD)-based empirical formula. Therefore, a Gmax estimating formula for normally consolidated clayey soils is newly suggested in this study using the dilatometer constrained modulus (MDMT) and stress-normalized material index (ID). Most notably, the estimated Gmax values using the suggested formula are comparable with the measured Gmax of both this study and the previous study on normally consolidated clayey soils.

AB - The aim of this experimental study is to estimate the maximum shear modulus (Gmax) of normally consolidated clayey soils using the results of a dilatometer test (DMT). A series of DMTs was conducted at the Busan New Port and Noksan sites in South Korea. In addition, basic index tests, bender element tests (i.e., shear wave velocity (Vs) measurements), and standard 1-D consolidation tests were performed using the undisturbed specimens. The results demonstrate that the Gmax of normally consolidated Busan clays cannot be adequately captured by the horizontal stress index (KD)-based empirical formula. Therefore, a Gmax estimating formula for normally consolidated clayey soils is newly suggested in this study using the dilatometer constrained modulus (MDMT) and stress-normalized material index (ID). Most notably, the estimated Gmax values using the suggested formula are comparable with the measured Gmax of both this study and the previous study on normally consolidated clayey soils.

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KW - dilatometer test

KW - maximum shear modulus

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KW - shear wave velocity

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JF - Marine Georesources and Geotechnology

IS - 5

ER -

Use of the dilatometer test to estimate the maximum shear modulus of normally consolidated Busan clay

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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