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[期刊论文]

An elastoplastic constitutive model for underconsolidated clay

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作者:

Lu, Dechun (Lu, Dechun.) (学者:路德春) | Cao, Shengtao (Cao, Shengtao.) | Cheng, Xinglei (Cheng, Xinglei.) | 展开

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摘要:

The interpolation function method was employed to establish the Cam-clay Model and Modified Cam-clay Model for normally consolidated clay. Through the initial pressure density states (the degree of underconsolidation), the isotropy compression curve's ramp rates of underconsolidated soil can be determined, on the base of which, an elastoplastic constitutive model for underconsolidated clay was proposed by employing the interpolation function method in this paper. The model established has the same material parameters as the Cam-clay Model, and when the initial pressure density states is on the normal consolidation line, it can be simplified into the Cam-clay Model. The authors analyzed the function of model established by the consolidated drainage and consolidated undrainaged tests, and the model can reflect rationally the mechanical properties of underconsolidated clay.

关键词:

Density (specific gravity) Cams Constitutive models Soil testing Soil mechanics Interpolation Critical current density (superconductivity) Elastoplasticity

作者机构:

  • [ 1 ] [Lu, Dechun]Institute of Geotechnical and Underground Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 2 ] [Cao, Shengtao]Institute of Geotechnical and Underground Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 3 ] [Cheng, Xinglei]Institute of Geotechnical and Underground Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 4 ] [Du, Xiuli]Institute of Geotechnical and Underground Engineering, Beijing University of Technology, Beijing 100124, China

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来源 :

China Civil Engineering Journal

ISSN: 1000-131X

年份: 2010

期: SUPPL. 2

卷: 43

页码: 320-326

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