|
|
|
Title: LATERAL RESPONSE AND EARTH PRESSURE PARAMETERS OF COHESIONLESS SOILS RELATED TO FLAT DILATOMETER DATA: A LABORATORY STUDY
Accession Number: 00468622
Record Type: Component
Availability: Find a library where document is available Abstract: In situ evaluation of soil parameters in the lateral direction such as the at-rest lateral earth pressure coefficient, lateral subgrade coefficient, and lateral soil modulus is required for a variety of soil-structure interaction analyses. A practical device to estimate these parameters is the flat dilatometer. The flat dilatometer requires, however, as do most other in situ penetrometer-type devices, calibration under simulated in situ conditions for possible extrapolation of the results to undisturbed soil conditions. A series of laboratory experiments was conducted to investigate the effects of dilatometer penetration on the soil parameters estimated from the dilatometer data in sands. With regard to the at-rest lateral earth pressure coefficient, the results indicated that the relation between the in situ earth pressure and the lateral earth pressure measured after dilatometer penetration is a function of particle shape characteristics as well as relative density and vertical overburden pressure. The lateral subgrade coefficient and the lateral soil modulus were found to be reasonably linear functions of the corresponding soil parameters determined from the dilatometer data, namely the dilatometer subgrade reaction coefficient and the dilatometer modulus. The range of uncertainty, however, was found to increase with the angularity of the particles in soil. Both particle shape and relative density become controlling factors for the slope and linearity of these relationships in soils composed of angular particles.
Supplemental Notes: Publication of this paper sponsored by Committee on Exploration and Classification of Earth Materials. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Title: Monograph Accession #: 01418086
Authors: Motan, E SabriJacot, Brian JPagination: pp 98-104
Publication Date: 1987
Serial: ISBN: 0309044723
Media Type: Print
Features: Figures
(7)
; References
(8)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Geotechnology; Highways; I42: Soil Mechanics
Files: TRIS, TRB, ATRI
Created Date: May 31 1988 12:00AM
More Articles from this Serial Issue:
|
