Model Tests and Fem Simulation of Some Factors Affecting the Bearing Capacity of a Footing on Sand

Siddiquee, M. S. A.; Tatsuoka, Fumio; Танака, Тадатсугу; Tani, Kazuo; Yoshida, Kenji; Morimoto, Tsutomu

doi:10.3208/sandf.41.2_53

Cited by 54 publications

(16 citation statements)

References 24 publications

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“…Centrifugal test results showed clear progressive failure (Yamaguchi et al, 1976) and suggested the dependency of internal friction angle (e.g., Hettler and Gudehus, 1988). However, Siddiquee et al (2001) claimed that particle size relative to a footing width plays a signiˆcant role on the size dependency.…”

Section: Rigid Plastic Analysismentioning

confidence: 99%

Foundations

Kusakabe

Kobayashi

2010

Soils and Foundations

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Foundation engineering emerged as a discipline of modern engineering science in 1940s.Design and analysis as well as practice of foundation engineering have made a signiˆcant progress up to the present time.This paper gives an overview of the development of foundation engineering, mainly referring to papers published in Soils and Foundations.The paper describes the theoretical development of foundation analysis and a recent increasing trend of foundation practice of adopting various hybrid foundations.The paper points out the importance of environmental considerations in foundation design and practice, including low noise and vibration reduction, reuse of existing foundations and use of natural energy through foundation elements.The paper then provides authors'views of future directions in foundation studies and practice.

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Section: Rigid Plastic Analysismentioning

confidence: 99%

Foundations

Kusakabe

Kobayashi

2010

Soils and Foundations

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“…On the other hand, a big research eŠort has been made so far to develop the elastoplastic constitutive equation of soils and the numerical method for the analyses of boundary-value problems on the deformation behavior of soil structures, especially the footing-settlement problem (cf. de Borst and Vermeer, 1984; Pietruszczak and Niu, 1993; de Borst and Groen, 1999; Borja et al, 1990Borja et al, , 1991Borja et al, , 1998Borja et al, , 2001Borja et al, , 2004Siddiquee et al, 2001;Potts, 2003;Smith and Gri‹th, 2004). Notwithstanding, it has not been advanced to the level to take the place of the slip-line method for the mechanical design of soil structures in practice so far.…”

Section: Introductionmentioning

confidence: 99%

“…4. The rectangular elements with reduced (one point) integration and the hour-glass prevention algorithm incorporating the explicit dynamic-relaxation method is adopted by Tanaka (Tanaka and Kawamoto, 1988;Siddiquee et al, 1999Siddiquee et al, , 2001). The time required for calculation can be reduced drastically since the solution of total stiŠness matrix equation between the forces and the displacements of whole nodal points is not required.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Footing Settlement Problem by Subloading Surface Model

Mase

Hashiguchi

2009

Soils and Foundations

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This article addresses the numerical analysis of the load-settlement relation of footing on a soil ground by theˆnite diŠerence method incorporating the subloading surface model. The subloading surface model is the elastoplastic constitutive model describing most pertinently the plastic strain rate due to the rate of stress inside the yield surface so as to fulˆll the continuity and the smoothness conditions. For theˆnite diŠerence program FLAC3D is used, which adopts the explicit dynamic relaxation method without solving the total stiŠness matrix equation and thus has the capability for the remarkable reduction of calculation time. The relevance of the present approach to the description of the loadsettlement curve exhibiting the ultimate load is demonstrated by the numerical experiments. Further, the applicability to the prediction of real behavior of footing-settlement is veriˆed by comparison with the test data for sand grounds with a high friction property.

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“…That is, reproduction of the field pressure level in smallscale physical model tests may not be sufficient. Siddiquee et al (1999Siddiquee et al ( , 2001 showed that the results from 1g and centrifuge model tests in which shear banding has important effects can be well simulated by numerical analysis only when the effects of the relevant factors on soil stress-strain property are accurately taken into account in the numerical analysis. These factors include:…”

Section: G and Centrifuge Model Testsmentioning

confidence: 99%

“…Moreover, small-scale 1g model tests are useful to validate numerical analysis methods (including the FEM) (e.g. Siddiquee et al 1999Siddiquee et al , 2001.…”

Section: G and Centrifuge Model Testsmentioning

confidence: 99%