Clay Strength Increase Caused by Repeated Loading

Seed, H. Bolton; McNeill, R. L.; Guenin, Jacques De

doi:10.1061/taceat.0007882

Cited by 3 publications

(2 citation statements)

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“…It has been suggested that the abrupt point of deformation curvature under dynamic load should be taken as the criterion for identifying soil failure strain [31]. Through laboratory dynamic triaxial test, Lee et al [32] found that when the strain of clay with high sensitivity reaches 4%-6% and that of clay with low sensitivity reaches 2%-3%, the failure of the shear plane will occur.…”

Section: Plos Onementioning

confidence: 99%

“…In order to make the unified determination of soil structure failure, the single strain of 3% was proposed as the standard for judging soil failure strain. Seed et al [31] took the specimen plastic strain reaching a certain value (such as 5% or 10%) as the failure strain standard. In addition, according to the engineering background of soil specimens, many researchers took the plastic strain of 1%, 5%, 10%, or 15% as the standard for failure strain [30].…”

Section: Plos Onementioning

confidence: 99%

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Study on dynamic characteristics of salinized silt under cyclic loading

Wu,

Kou,

Xuan

et al. 2024

PLoS ONE

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Under the repeated action of aircraft taxiing load, the subgrade plastic deformation becomes the key factor affecting the service performance of the airfields when salinized silt is used to fill the subgrade. In this study, the dynamic triaxial tests were carried out on a region in the northern part of China to study the effects of different salt contents on the dynamic characteristics of silt under cyclic loading. A prediction model for the salinized silt dynamic strength with a plastic strain of 4% as the failure criterion for the subgrade was thus proposed. It is found that with the increase of dynamic stress amplitude, the salinized silt plastic deformation transforms gradually from plastic deformation to incremental failure. The salt contents significantly influence the plastic strain and critical dynamic stress of silt. The strength of the salinized silt specimen is related to the ion concentration in the soil pores and the arrangement pattern of soil particles, as indicated by the progressive strength increase of the salinized silt at the low salt content of 1% and a further gradual decrease at high salt content.

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Section: Plos Onementioning

confidence: 99%

Section: Plos Onementioning

confidence: 99%

Study on dynamic characteristics of salinized silt under cyclic loading

Wu,

Kou,

Xuan

et al. 2024

PLoS ONE

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Evaluation of Resilient Modulus of Cemented Lime Rock Base Materials in Florida

Ping

1996

Transportation Research Record: Journal of the Transportation R

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The Influence of Subgrade Subsidence on Train Track Dynamic Interaction

O’Brien¹,

Taheri²,

Gavin³

Civil-Comp Proceedings

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This paper reports results from a numerical model to calculate subgrade settlement in railway tracks due to repeated dynamic loading. The trains are modelled as rigid body 2-axle carriages on two layers of springs. The track is modelled as a beam supported on three layers of springs. Permanent deformation of the subgrade layer is calculated on the basis of a power law assumption. Patterns of dynamic forces are calculated on a smooth track and on a track subject to an initial subgrade 'pothole'. The latter is shown to grow with repeated loading and to change the mean patterns of applied force.

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Clay Strength Increase Caused by Repeated Loading

Cited by 3 publications

References 0 publications

Study on dynamic characteristics of salinized silt under cyclic loading

Study on dynamic characteristics of salinized silt under cyclic loading

Evaluation of Resilient Modulus of Cemented Lime Rock Base Materials in Florida

The Influence of Subgrade Subsidence on Train Track Dynamic Interaction

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