New structure-based model for estimating undrained shear strength
Identifieur interne : 000281 ( PascalFrancis/Corpus ); précédent : 000280; suivant : 000282New structure-based model for estimating undrained shear strength
Auteurs : Ozer Cinicioglu ; Dobroslav Znidarcic ; Hon-Yim KoSource :
- Journal of geotechnical and geoenvironmental engineering [ 1090-0241 ] ; 2007.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
This paper presents an experimental study of the strength in anisotropic clays by means of centrifuge model, cone penetration, and vane shear tests. To understand the effects of void ratio, overconsolidation ratio, and testing rate on the undrained shear strength (Su) of anisotropic Speswhite clay, a new centrifugal testing technique is designed to obtain constant overconsolidation ratio (OCR) profiles with varying void ratios (e), called the "descending gravity test." The parameters controlling the generation of peak shear strength are quantified. As a result of this function, a new material and rate-dependent surface is defined in the e-OCR-Su space, which is identified as a "structural state capacity surface" since it relates the anisotropic structure to structure inherent capacity and properties. A new function for the estimation of excess pore pressure (uex) generated by cone penetration is found. By combining the strength and pore pressure functions a new model is proposed, called the "CU model." The CU model is a structure-based model that provides reliable estimates of shear strength for in situ saturated clays using the knowledge of void and overconsolidation ratios. Finally, by combining Su-e-OCR and uex-e-OCR relationships, it estimates the void ratio and OCR profiles of anisotropic clays from piezocone penetration test results.
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Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 08-0255282 INIST |
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ET : | New structure-based model for estimating undrained shear strength |
AU : | CINICIOGLU (Ozer); ZNIDARCIC (Dobroslav); KO (Hon-Yim) |
AF : | Dept. of Civil Engineering, Bogazici Univ/Bebek, Istanbul, 34342/Turquie (1 aut.); Dept. of Civil, Environmental and Architectural Engineering, Univ. of Colorado/Boulder, CO 80309/Etats-Unis (2 aut., 3 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Journal of geotechnical and geoenvironmental engineering; ISSN 1090-0241; Etats-Unis; Da. 2007; Vol. 133; No. 10; Pp. 1290-1301; Bibl. 1/2 p. |
LA : | Anglais |
EA : | This paper presents an experimental study of the strength in anisotropic clays by means of centrifuge model, cone penetration, and vane shear tests. To understand the effects of void ratio, overconsolidation ratio, and testing rate on the undrained shear strength (Su) of anisotropic Speswhite clay, a new centrifugal testing technique is designed to obtain constant overconsolidation ratio (OCR) profiles with varying void ratios (e), called the "descending gravity test." The parameters controlling the generation of peak shear strength are quantified. As a result of this function, a new material and rate-dependent surface is defined in the e-OCR-Su space, which is identified as a "structural state capacity surface" since it relates the anisotropic structure to structure inherent capacity and properties. A new function for the estimation of excess pore pressure (uex) generated by cone penetration is found. By combining the strength and pore pressure functions a new model is proposed, called the "CU model." The CU model is a structure-based model that provides reliable estimates of shear strength for in situ saturated clays using the knowledge of void and overconsolidation ratios. Finally, by combining Su-e-OCR and uex-e-OCR relationships, it estimates the void ratio and OCR profiles of anisotropic clays from piezocone penetration test results. |
CC : | 001D14F01; 295 |
FD : | Essai sol; Argile; Sol surconsolidé; Essai non drainé; Fraction vide; Essai pénétration; Pression eau; Pression pores |
ED : | Soil test; Clay; Overconsolidated soil; Undrained soil test; Void fraction; Penetration test; Water pressure; Pore pressure |
SD : | Ensayo suelo; Arcilla; Suelo sobreconsolidado; Prueba suelo no drenado; Fracción vacío; Ensayo penetración; Presión agua; Presión poros |
LO : | INIST-572C.354000160873640100 |
ID : | 08-0255282 |
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Pascal:08-0255282Le document en format XML
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<front><div type="abstract" xml:lang="en">This paper presents an experimental study of the strength in anisotropic clays by means of centrifuge model, cone penetration, and vane shear tests. To understand the effects of void ratio, overconsolidation ratio, and testing rate on the undrained shear strength (S<sub>u</sub>
) of anisotropic Speswhite clay, a new centrifugal testing technique is designed to obtain constant overconsolidation ratio (OCR) profiles with varying void ratios (e), called the "descending gravity test." The parameters controlling the generation of peak shear strength are quantified. As a result of this function, a new material and rate-dependent surface is defined in the e-OCR-S<sub>u</sub>
space, which is identified as a "structural state capacity surface" since it relates the anisotropic structure to structure inherent capacity and properties. A new function for the estimation of excess pore pressure (u<sub>ex</sub>
) generated by cone penetration is found. By combining the strength and pore pressure functions a new model is proposed, called the "CU model." The CU model is a structure-based model that provides reliable estimates of shear strength for in situ saturated clays using the knowledge of void and overconsolidation ratios. Finally, by combining S<sub>u</sub>
-e-OCR and u<sub>ex</sub>
-e-OCR relationships, it estimates the void ratio and OCR profiles of anisotropic clays from piezocone penetration test results.</div>
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<server><NO>PASCAL 08-0255282 INIST</NO>
<ET>New structure-based model for estimating undrained shear strength</ET>
<AU>CINICIOGLU (Ozer); ZNIDARCIC (Dobroslav); KO (Hon-Yim)</AU>
<AF>Dept. of Civil Engineering, Bogazici Univ/Bebek, Istanbul, 34342/Turquie (1 aut.); Dept. of Civil, Environmental and Architectural Engineering, Univ. of Colorado/Boulder, CO 80309/Etats-Unis (2 aut., 3 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
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<LA>Anglais</LA>
<EA>This paper presents an experimental study of the strength in anisotropic clays by means of centrifuge model, cone penetration, and vane shear tests. To understand the effects of void ratio, overconsolidation ratio, and testing rate on the undrained shear strength (S<sub>u</sub>
) of anisotropic Speswhite clay, a new centrifugal testing technique is designed to obtain constant overconsolidation ratio (OCR) profiles with varying void ratios (e), called the "descending gravity test." The parameters controlling the generation of peak shear strength are quantified. As a result of this function, a new material and rate-dependent surface is defined in the e-OCR-S<sub>u</sub>
space, which is identified as a "structural state capacity surface" since it relates the anisotropic structure to structure inherent capacity and properties. A new function for the estimation of excess pore pressure (u<sub>ex</sub>
) generated by cone penetration is found. By combining the strength and pore pressure functions a new model is proposed, called the "CU model." The CU model is a structure-based model that provides reliable estimates of shear strength for in situ saturated clays using the knowledge of void and overconsolidation ratios. Finally, by combining S<sub>u</sub>
-e-OCR and u<sub>ex</sub>
-e-OCR relationships, it estimates the void ratio and OCR profiles of anisotropic clays from piezocone penetration test results.</EA>
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