Study on hypoplastic constitutive modeling of rockfill and its application

Weijun Cen, Xiuxin Wang, Erich Bauer, Yueming Zhu

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Hypoplastic constitutive theory, which was originated from the middle and late stage of the 20th century, is a new type of soil constitutive theory based on rational mechanics. Hypoplastic theory can reflect inelasticity, nonlinearity, dilatancy and other main mechanical properties of granular material. The origin and development, general representation of hypoplastic constitutive model are introduced; and mechanical and mathematical analysis is made. Besides, the modeling thought of recently updated hypoplastic models is briefly introduced based on the study of the relation between void ratio and mean pressure and the relation between void ratio and volumetric strain of granular soil. Combining with the analysis of main mechanical properties of rockfill, the Gudehus-Bauer hypoplastic model which can reflect the latest international hypoplastic research level is modified properly and applied to constitutive modeling of rockfill. Finally, the new modified model is used in the hypoplastic numerical analysis of deformation and stress of a typical concrete face rockfill dam. Theoretical analysis and engineering application show that the new updated model can reflect inelasticity, nonlinearity, dilatancy and other main mechanical behaviors of rockfill and has the advantage of wide adaptability of constitutive parameters.

Original languageEnglish
Pages (from-to)312-322
Number of pages11
JournalChinese Journal of Rock Mechanics and Engineering
Volume26
Issue number2
Publication statusPublished - Feb 2007

Fingerprint

rockfill
dilatancy
modeling
void ratio
nonlinearity
mechanical property
Soils
Mechanical properties
Granular materials
mechanical properties
rockfill dam
Constitutive models
mathematical analysis
Dams
Numerical analysis
Mechanics
mechanics
Concretes
dams (hydrology)
soil

Keywords

  • Concrete faced rockfill dam
  • Constitutive modeling
  • Constitutive theory
  • Hypoplasticity
  • Rate type
  • Rock and soil mechanics
  • Rockfill
  • Void ratio

ASJC Scopus subject areas

  • Soil Science
  • Geotechnical Engineering and Engineering Geology

Cite this

Study on hypoplastic constitutive modeling of rockfill and its application. / Cen, Weijun; Wang, Xiuxin; Bauer, Erich; Zhu, Yueming.

In: Chinese Journal of Rock Mechanics and Engineering, Vol. 26, No. 2, 02.2007, p. 312-322.

Research output: Contribution to journalArticleResearchpeer-review

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