Increased Resistance to Deformation of Clay Caused by Repeated Loading

Seed, H. Bolton; McNeill, R. L.; deGuenin, J.

doi:10.1061/jsfeaq.0000113

Cited by 10 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: Analysis Of Test Resultsmentioning

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: Analysis Of Test Resultsmentioning

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: Analysis Of Test Resultsmentioning

confidence: 99%

Section: Analysis Of Test Resultsmentioning

confidence: 99%