Application of a relationship between Ca and OCR* in 1-D compression analysis for clays

Yanbin Gao; Hehua Zhu; Xiaoming Yang

doi:10.1061/40862(194)4

Application of a relationship between C_a and OCR* in 1-D compression analysis for clays

Yanbin Gao, Hehua Zhu, Xiaoming Yang

Civil Engineering & Construction

Tongji University

Research output: Contribution to book or proceeding › Conference article › peer-review

Abstract

This paper presents a relation between the secondary compression index Ca and the quasi-over-consolidation ratio OCR * from the one-dimensional oedometer test results to describe the nonlinear creep behavior for overconsolidated and quasi-overconsolidated clays. The 1-D compression model based on this relationship is developed and incorporated into a FDM (Finite Difference Method) program. In this model, the lower creep rate for overconsolidated soil is explained by the decrease of secondary compression index Ca , and the viscous compression is divided into viscoelastic and viscoplastic parts, which is different from the "equivalent time line" concept. The numerical predictions show that this method can account for the nonlinear creep behavior induced by overconsolidation or quasi-overconsolidation of clays.

Original language	English
Title of host publication	Soil and Rock Behavior and Modeling - Proceedings of the GeoShanghai Conference
Pages	42-47
Number of pages	6
Edition	150
DOIs	https://doi.org/10.1061/40862(194)4
State	Published - 2006
Event	Soil and Rock Behavior and Modeling - Shanghai, China Duration: Jun 6 2006 → Jun 8 2006

Publication series

Name	Geotechnical Special Publication
Number	150
ISSN (Print)	0895-0563

Conference

Conference	Soil and Rock Behavior and Modeling
Country/Territory	China
City	Shanghai
Period	06/6/06 → 06/8/06

Scopus Subject Areas

Civil and Structural Engineering
Architecture
Building and Construction
Geotechnical Engineering and Engineering Geology

Access to Document

10.1061/40862(194)4License: Unspecified

Cite this

@inproceedings{f5e75c4a0f474c0aa3f0dbbf7e09dbb7,

title = "Application of a relationship between Ca and OCR* in 1-D compression analysis for clays",

abstract = " This paper presents a relation between the secondary compression index Ca and the quasi-over-consolidation ratio OCR * from the one-dimensional oedometer test results to describe the nonlinear creep behavior for overconsolidated and quasi-overconsolidated clays. The 1-D compression model based on this relationship is developed and incorporated into a FDM (Finite Difference Method) program. In this model, the lower creep rate for overconsolidated soil is explained by the decrease of secondary compression index Ca , and the viscous compression is divided into viscoelastic and viscoplastic parts, which is different from the {"}equivalent time line{"} concept. The numerical predictions show that this method can account for the nonlinear creep behavior induced by overconsolidation or quasi-overconsolidation of clays.",

author = "Yanbin Gao and Hehua Zhu and Xiaoming Yang",

note = "This paper presents a relation between the secondary compression index and the quasi-over-consolidation ratio OCR* from the one-dimensional oedometer test results to describe the nonlinear creep behavior for overconsolidated and quasi-overconsolidated clays. The 1-D compression model based on this relationship is developed and incorporated into a FDM (Finite Difference Method) program.; Soil and Rock Behavior and Modeling ; Conference date: 06-06-2006 Through 08-06-2006",

year = "2006",

doi = "10.1061/40862(194)4",

language = "English",

isbn = "0784408629",

series = "Geotechnical Special Publication",

number = "150",

pages = "42--47",

booktitle = "Soil and Rock Behavior and Modeling - Proceedings of the GeoShanghai Conference",

edition = "150",

}

Application of a relationship between C_a and OCR* in 1-D compression analysis for clays. / Gao, Yanbin; Zhu, Hehua; Yang, Xiaoming.
Soil and Rock Behavior and Modeling - Proceedings of the GeoShanghai Conference. 150. ed. 2006. p. 42-47 (Geotechnical Special Publication; No. 150).

Research output: Contribution to book or proceeding › Conference article › peer-review

TY - GEN

T1 - Application of a relationship between Ca and OCR* in 1-D compression analysis for clays

AU - Gao, Yanbin

AU - Zhu, Hehua

AU - Yang, Xiaoming

N1 - This paper presents a relation between the secondary compression index and the quasi-over-consolidation ratio OCR* from the one-dimensional oedometer test results to describe the nonlinear creep behavior for overconsolidated and quasi-overconsolidated clays. The 1-D compression model based on this relationship is developed and incorporated into a FDM (Finite Difference Method) program.

PY - 2006

Y1 - 2006

N2 - This paper presents a relation between the secondary compression index Ca and the quasi-over-consolidation ratio OCR * from the one-dimensional oedometer test results to describe the nonlinear creep behavior for overconsolidated and quasi-overconsolidated clays. The 1-D compression model based on this relationship is developed and incorporated into a FDM (Finite Difference Method) program. In this model, the lower creep rate for overconsolidated soil is explained by the decrease of secondary compression index Ca , and the viscous compression is divided into viscoelastic and viscoplastic parts, which is different from the "equivalent time line" concept. The numerical predictions show that this method can account for the nonlinear creep behavior induced by overconsolidation or quasi-overconsolidation of clays.

AB - This paper presents a relation between the secondary compression index Ca and the quasi-over-consolidation ratio OCR * from the one-dimensional oedometer test results to describe the nonlinear creep behavior for overconsolidated and quasi-overconsolidated clays. The 1-D compression model based on this relationship is developed and incorporated into a FDM (Finite Difference Method) program. In this model, the lower creep rate for overconsolidated soil is explained by the decrease of secondary compression index Ca , and the viscous compression is divided into viscoelastic and viscoplastic parts, which is different from the "equivalent time line" concept. The numerical predictions show that this method can account for the nonlinear creep behavior induced by overconsolidation or quasi-overconsolidation of clays.

UR - http://www.scopus.com/inward/record.url?scp=33845381058&partnerID=8YFLogxK

U2 - 10.1061/40862(194)4

DO - 10.1061/40862(194)4

M3 - Conference article

SN - 0784408629

SN - 9780784408629

T3 - Geotechnical Special Publication

SP - 42

EP - 47

BT - Soil and Rock Behavior and Modeling - Proceedings of the GeoShanghai Conference

T2 - Soil and Rock Behavior and Modeling

Y2 - 6 June 2006 through 8 June 2006

ER -