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 Ca 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 › Chapter

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	American English
Title of host publication	Proceedings of the GeoShanghai 2006: Soil and Rock Behavior and Modeling
DOIs	https://doi.org/10.1061/40862(194)4
State	Published - 2006

Keywords

1-d compression analysis
Application
Ca
Clays
OCR
Relationship

DC Disciplines

Construction Engineering
Civil Engineering

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10.1061/40862(194)4License: Unspecified

Cite this

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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.",

keywords = "1-d compression analysis, Application, Ca, Clays, OCR, Relationship",

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.",

year = "2006",

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

language = "American English",

booktitle = "Proceedings of the GeoShanghai 2006: Soil and Rock Behavior and Modeling",

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TY - CHAP

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.

KW - 1-d compression analysis

KW - Application

KW - Ca

KW - Clays

KW - OCR

KW - Relationship

UR - https://doi.org/10.1061/40862(194)4

U2 - 10.1061/40862(194)4

DO - 10.1061/40862(194)4

M3 - Chapter

BT - Proceedings of the GeoShanghai 2006: Soil and Rock Behavior and Modeling

ER -

Application of a Relationship Between Ca and OCR* in 1-D Compression Analysis for Clays

Abstract

Keywords

DC Disciplines

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