ESTIMATION OF MOHR-COULOMB STRENGTH PARAMETERS BY USING PLATE LOADING AND BOREHOLE LOADING TESTS

This paper proposes a reliable method for estimating Mohr-Coulomb strength parameters c and φ from a load-displacement relationship obtained by plate loading and borehole loading tests. Strength parameters c and φ are back-calculated so that those minimize the difference between measured and calcula...

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Bibliographic Details
Published inDoboku Gakkai Ronbunshuu C Vol. 62; no. 1; pp. 215 - 226
Main Authors ARAI, Katsuhiko, TSUJI, Shinichiro
Format Journal Article
LanguageJapanese
Published Japan Society of Civil Engineers 2006
Subjects
back-analysis
in-situ test
load-displacement relationship
Mohr-Coulomb strength parameters
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Summary:This paper proposes a reliable method for estimating Mohr-Coulomb strength parameters c and φ from a load-displacement relationship obtained by plate loading and borehole loading tests. Strength parameters c and φ are back-calculated so that those minimize the difference between measured and calculated displacements which are based on a hyperbolic type of stress-strain model. The incremental method for non-linear stress-strain analysis and the simplex method for optimization are respectively employed. It is possible to estimate c and φ separately from a load-displacement relationship usually measured by in-situ test since c and φ affect the load-displacement relationship in a different manner.
ISSN:1880-604X
DOI:10.2208/jscejc.62.215