2005
DOI: 10.1002/nag.448
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Analysis of pressuremeter geometry effects in clay using critical state models

Abstract: SUMMARYThe conventional interpretation methods of pressuremeter testing effectively approximate pressuremeter membranes as infinitely long. As a result, the effects of the two-dimensional geometry of pressuremeters are ignored, leading to an overestimation of soil shear strength by pressuremeter testing, as demonstrated in several previous studies. This paper presents results of a numerical study of two-dimensional geometry effects on self-boring pressuremeter tests in undrained clay. The results are obtained … Show more

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Cited by 15 publications
(4 citation statements)
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“…The numerically optimized values of R p may also sustain the geometry effect since all of the analyses were carried out with the simplified numerical mesh representing a unit of pressuremeter membrane. As reported by Yu et al [31], the effect of geometry in lightly consolidated soil may have an influence on the derived [60] are higher than those derived numerically, which can be attributed to the assumed undrained conditions.…”
Section: Parameter Identification Of the Fucino Claymentioning
confidence: 51%
See 1 more Smart Citation
“…The numerically optimized values of R p may also sustain the geometry effect since all of the analyses were carried out with the simplified numerical mesh representing a unit of pressuremeter membrane. As reported by Yu et al [31], the effect of geometry in lightly consolidated soil may have an influence on the derived [60] are higher than those derived numerically, which can be attributed to the assumed undrained conditions.…”
Section: Parameter Identification Of the Fucino Claymentioning
confidence: 51%
“…The FE mesh was built with the full awareness of the existing analyses of the L/D geometry effect (e.g. [31]). It was also assumed that the expansion takes place in a fully saturated medium.…”
Section: Numerical Modeling Of Sbptmentioning
confidence: 99%
“…The second example considers a self-boring pressuremeter with length to diameter ratio of 6. It should be emphasized that intention here is not to study the effect of pressuremeter geometry on the interpretation of test results (for such investigations see Houlsby & Carter [27], Shuttle & Jefferies [28], Yu et al [29]), but to verify the accuracy of the derived relationship in a typical cavity expansion problem with rotating principal directions. Therefore, a simple numerical model of the finite length self-boring pressuremeter is used (Fig.…”
Section: Finite Length Self-boring Pressuremeter Testmentioning
confidence: 99%
“…In addition to classical cavity expansion solutions in elastic materials, a range of analytical solutions have been proposed using more sophisticated constitutive soil models, from elastic-perfectly plastic soils (Vesic, 1972;Carter et al, 1986;Yu & Houlsby, 1991;Mo et al, 2014) to elasticplastic strain hardening soils (Palmer & Mitchell, 1971;Collins & Yu, 1996;Chen & Abousleiman, 2012, 2013. Although numerical simulations are gaining popularity for boundary value problems when sophisticated soil models are employed (Carter, 1978;Yu, 1990;Yu et al, 2005), analytical solutions remain highly useful both for validation of numerical simulations and providing insight into the relative importance of various soil parameters.…”
Section: Introductionmentioning
confidence: 99%