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Title:

Empirical Correlation of Undrained Shear Strength Based on Cone Penetration Test for Clayey Soils in Indiana

Accession Number:

01122345

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

This paper presents the correlation of undrained shear strength based on the cone resistance from the cone penetration test (CPT) for clayey soils in Indiana. It utilized the field cone penetration test program including CPT, the index test, the one dimensional test and the triaxial test. The cone factor, which is most important for reliable estimation of undrained shear strength from cone resistance, has been evaluated considering the plasticity index of soils. The cone factor is influenced by the penetration rate during CPT and test methods that are used for obtaining the undrained shear strength. The rate effect of the CPT has been examined to ensure undrained penetration, and the isotropic consolidated undrained compression test (CIUC) for shear strength assessment has been used to effectively reflect in-situ strength. Following the field cone penetration test program, clayey soils from nine sites in Indiana have been investigated. Based on the results from the test program, the cone factor ranges from 8.0 at to 12.1 at for over consolidated (OC) clays. This result parallels the increasing trend of the cone factor as the plasticity index increases, which was reported by Aas et al. (1986), while Lunne et al. (1976) and Baligh et al. (1980) showed the decreasing trends (1, 2, 3). The equation is suggested for estimating the cone factor in geotechnical design. This equation should be implemented with more collected field data for more precise cone factor estimation. The analysis is meaningful as it indicates the increasing trend of cone factor with plasticity index for clayey soils in Indiana.

Monograph Accession #:

01120148

Report/Paper Numbers:

09-1199

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Shin, Young Jin
Kim, Daehyeon
Siddiki, Nayyar Zia

Pagination:

18p

Publication Date:

2009

Conference:

Transportation Research Board 88th Annual Meeting

Location: Washington DC, United States
Date: 2009-1-11 to 2009-1-15
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures (8) ; References (25) ; Tables (6)

Uncontrolled Terms:

Resistance factors

Geographic Terms:

Indiana

Subject Areas:

Geotechnology; Highways; I42: Soil Mechanics

Source Data:

Transportation Research Board Annual Meeting 2009 Paper #09-1199

Files:

TRIS, TRB

Created Date:

Jan 30 2009 5:24PM