Sciences in Cold and Arid Regions ›› 2015, Vol. 7 ›› Issue (5): 492–502.doi: 10.3724/SP.J.1226.2015.00492

• ARTICLES • 上一篇    

Cyclic behavior of soils and numerical analyses in cold regions and seismic zones

Tadatsugu Tanaka   

  1. The Japan Association of Rural Resource Recycling Solutions, Tokyo 105-0004, Japan
  • 收稿日期:2015-04-13 修回日期:2015-06-10 发布日期:2018-11-23
  • 通讯作者: Ph.D., Tadatsugu Tanaka, President of the Japanese Association of Rural Recycling Solutions, Tokyo 105-0004, Japan. Tel: +81-3-3432-5295; E-mail: tad.tanaka@gmail.com E-mail:tad.tanaka@gmail.com

Cyclic behavior of soils and numerical analyses in cold regions and seismic zones

Tadatsugu Tanaka   

  1. The Japan Association of Rural Resource Recycling Solutions, Tokyo 105-0004, Japan
  • Received:2015-04-13 Revised:2015-06-10 Published:2018-11-23
  • Contact: Ph.D., Tadatsugu Tanaka, President of the Japanese Association of Rural Recycling Solutions, Tokyo 105-0004, Japan. Tel: +81-3-3432-5295; E-mail: tad.tanaka@gmail.com E-mail:tad.tanaka@gmail.com

摘要: The solutions of boundary value problems involving strain-softening material property contain serious difficulties from both modeling of strain-localization and a viewpoint of numerical procedure. Mesh size-dependent hardening modulus is considered to alleviate the mesh size-dependency of the solution. The elasto-plastic soil model with kinematic hardening model considering the cumulative deformation by cyclic loading is developed. In finite element analyses, the dynamic relaxation method combined with the generalized return-mapping algorithm is applied to the static drained and un-drained tri-axial tests and plane strain tests. The cyclic behavior of retaining wall problems by freeze and thaw in cold regions is also analyzed. Finally the dynamic progressive failure analysis of rockfill dam is carried out.

关键词: strain softening, shear band, kinematic hardening, endochronic theory

Abstract: The solutions of boundary value problems involving strain-softening material property contain serious difficulties from both modeling of strain-localization and a viewpoint of numerical procedure. Mesh size-dependent hardening modulus is considered to alleviate the mesh size-dependency of the solution. The elasto-plastic soil model with kinematic hardening model considering the cumulative deformation by cyclic loading is developed. In finite element analyses, the dynamic relaxation method combined with the generalized return-mapping algorithm is applied to the static drained and un-drained tri-axial tests and plane strain tests. The cyclic behavior of retaining wall problems by freeze and thaw in cold regions is also analyzed. Finally the dynamic progressive failure analysis of rockfill dam is carried out.

Key words: strain softening, shear band, kinematic hardening, endochronic theory

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