Estimation of unimodal water characteristic curve for gap-graded soil

Alfrendo Satyanaga; Harianto Rahardjo; Qian Zhai

doi:10.1016/j.sandf.2017.08.009

Estimation of unimodal water characteristic curve for gap-graded soil

Alfrendo Satyanaga, Harianto Rahardjo, Qian Zhai

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

8 Citations (Scopus)

Abstract

Soils with a bimodal grain-size distribution (gap-graded soils) can be associated with unimodal or bimodal soil-water characteristic curves (SWCCs). Many equations have been developed to estimate SWCCs using grain-size distribution curves to overcome the high cost and long duration of SWCC experiments. Most of the equations are limited to the estimation of the SWCCs of soils with a unimodal grain-size distribution. Few studies have been conducted on the estimation of unimodal SWCCs for gap-graded soils. In this paper, procedures, equations and computer codes are proposed for estimating the unimodal SWCCs of gap-graded soils. The proposed equations are found to perform well in estimating the unimodal SWCCs of gap-graded soils.

Original language	English
Pages (from-to)	789-801
Number of pages	13
Journal	Soils and Foundations
Volume	57
Issue number	5
DOIs	https://doi.org/10.1016/j.sandf.2017.08.009
Publication status	Published - Oct 2017
Externally published	Yes

Keywords

Gap-graded soil
Grain-size distribution
Soil mixture
Unimodal soil-water characteristic curve

ASJC Scopus subject areas

Civil and Structural Engineering
Geotechnical Engineering and Engineering Geology

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title = "Estimation of unimodal water characteristic curve for gap-graded soil",

abstract = "Soils with a bimodal grain-size distribution (gap-graded soils) can be associated with unimodal or bimodal soil-water characteristic curves (SWCCs). Many equations have been developed to estimate SWCCs using grain-size distribution curves to overcome the high cost and long duration of SWCC experiments. Most of the equations are limited to the estimation of the SWCCs of soils with a unimodal grain-size distribution. Few studies have been conducted on the estimation of unimodal SWCCs for gap-graded soils. In this paper, procedures, equations and computer codes are proposed for estimating the unimodal SWCCs of gap-graded soils. The proposed equations are found to perform well in estimating the unimodal SWCCs of gap-graded soils.",

keywords = "Gap-graded soil, Grain-size distribution, Soil mixture, Unimodal soil-water characteristic curve",

author = "Alfrendo Satyanaga and Harianto Rahardjo and Qian Zhai",

note = "Funding Information: This work was supported by a research grant from a collaboration project between the Housing and Development Board and Nanyang Technological University (NTU), Singapore. The authors gratefully acknowledge the assistance of the Geotechnical Laboratory staff, School of Civil and Environmental Engineering, NTU, Singapore during the experiments and data collection. Publisher Copyright: {\textcopyright} 2017 Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

year = "2017",

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AU - Satyanaga, Alfrendo

AU - Rahardjo, Harianto

AU - Zhai, Qian

N1 - Funding Information: This work was supported by a research grant from a collaboration project between the Housing and Development Board and Nanyang Technological University (NTU), Singapore. The authors gratefully acknowledge the assistance of the Geotechnical Laboratory staff, School of Civil and Environmental Engineering, NTU, Singapore during the experiments and data collection. Publisher Copyright: © 2017 Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2017/10

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N2 - Soils with a bimodal grain-size distribution (gap-graded soils) can be associated with unimodal or bimodal soil-water characteristic curves (SWCCs). Many equations have been developed to estimate SWCCs using grain-size distribution curves to overcome the high cost and long duration of SWCC experiments. Most of the equations are limited to the estimation of the SWCCs of soils with a unimodal grain-size distribution. Few studies have been conducted on the estimation of unimodal SWCCs for gap-graded soils. In this paper, procedures, equations and computer codes are proposed for estimating the unimodal SWCCs of gap-graded soils. The proposed equations are found to perform well in estimating the unimodal SWCCs of gap-graded soils.

AB - Soils with a bimodal grain-size distribution (gap-graded soils) can be associated with unimodal or bimodal soil-water characteristic curves (SWCCs). Many equations have been developed to estimate SWCCs using grain-size distribution curves to overcome the high cost and long duration of SWCC experiments. Most of the equations are limited to the estimation of the SWCCs of soils with a unimodal grain-size distribution. Few studies have been conducted on the estimation of unimodal SWCCs for gap-graded soils. In this paper, procedures, equations and computer codes are proposed for estimating the unimodal SWCCs of gap-graded soils. The proposed equations are found to perform well in estimating the unimodal SWCCs of gap-graded soils.

KW - Gap-graded soil

KW - Grain-size distribution

KW - Soil mixture

KW - Unimodal soil-water characteristic curve

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