Influence of initial density of cohesionless soil on evolution of passive earth pressure |
| |
Authors: | J. Tejchman E. Bauer S. F. Tantono |
| |
Affiliation: | (1) Gdansk University of Technology, Gdansk, Poland;(2) Graz University of Technology, Graz, Austria |
| |
Abstract: | This paper focuses on the influence of the initial void ratio on the evolution of the passive earth pressure and the formation of shear zones in a dry sand body behind a retaining wall. For the numerical simulation a rigid and very rough retaining wall undergoing a horizontal translation against the backfill is considered. The essential mechanical properties of cohesionless granular soil are described with a micro-polar hypoplastic model which takes into account stresses and couple stresses, pressure dependent limit void ratios and the mean grain size as a characteristic length. Numerical investigations are carried out with an initially medium dense and initially loose sand using a homogeneous and random distribution of the initial void ratio. The geometry of calculated shear zones is discussed and compared with a corresponding laboratory model test. |
| |
Keywords: | Finite element method Initial void ratio Hypoplasticity Micro-polar rotation Passive earth pressure Shear zone |
本文献已被 SpringerLink 等数据库收录! |