Details
| Original language | English |
|---|---|
| Title of host publication | Numerical Methods in Geotechnical Engineering |
| Subtitle of host publication | Proceedings of the 7th European Conference on Numerical Methods in Geotechnical Engineering |
| Pages | 729-734 |
| Number of pages | 6 |
| Publication status | Published - 2010 |
| Event | 7th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2010 - Trondheim, Norway Duration: 2 Jun 2010 → 4 Jun 2010 |
Publication series
| Name | Numerical Methods in Geotechnical Engineering - Proceedings of the 7th European Conference on Numerical Methods in Geotechnical Engineering |
|---|
Abstract
The calculation of earth pressures acting on underground structures is a central problem in soil mechanics. In special cases spatial earth pressure problems also have to be considered. In order to investigate the spatial passive earth pressure acting on rigid walls in sand, numerical simulations with the finite element method (FEM) were carried out. A hypoplastic material law was adopted to account for the complex stress-strain behaviour of sand. Different wall geometries with varying spatiality ratios (breadth to height) and different deformation modes of the rigid wall were considered. The results show a high dependency of the earth pressure coefficients on the wall spatiality ratio. For a smooth wall, a good agreement with the approach of the German standard DIN 4085 is obtained. The wall displacement necessary to reach the maximum earth pressure is also dependent on the wall geometry, with the displacement decreasing with increasing spatiality ratio. The analysis of the earth pressure distributions shows that the earth pressure increase due to spatiality occurs almost only in the lower half of the wall.
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
- Mathematics(all)
- Numerical Analysis
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Numerical Methods in Geotechnical Engineering : Proceedings of the 7th European Conference on Numerical Methods in Geotechnical Engineering. 2010. p. 729-734 (Numerical Methods in Geotechnical Engineering - Proceedings of the 7th European Conference on Numerical Methods in Geotechnical Engineering).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Numerical modelling of spatial passive earth pressure in sand
AU - Achmus, M.
AU - Ghassoun, S.
AU - Abdel-Rahman, K.
PY - 2010
Y1 - 2010
N2 - The calculation of earth pressures acting on underground structures is a central problem in soil mechanics. In special cases spatial earth pressure problems also have to be considered. In order to investigate the spatial passive earth pressure acting on rigid walls in sand, numerical simulations with the finite element method (FEM) were carried out. A hypoplastic material law was adopted to account for the complex stress-strain behaviour of sand. Different wall geometries with varying spatiality ratios (breadth to height) and different deformation modes of the rigid wall were considered. The results show a high dependency of the earth pressure coefficients on the wall spatiality ratio. For a smooth wall, a good agreement with the approach of the German standard DIN 4085 is obtained. The wall displacement necessary to reach the maximum earth pressure is also dependent on the wall geometry, with the displacement decreasing with increasing spatiality ratio. The analysis of the earth pressure distributions shows that the earth pressure increase due to spatiality occurs almost only in the lower half of the wall.
AB - The calculation of earth pressures acting on underground structures is a central problem in soil mechanics. In special cases spatial earth pressure problems also have to be considered. In order to investigate the spatial passive earth pressure acting on rigid walls in sand, numerical simulations with the finite element method (FEM) were carried out. A hypoplastic material law was adopted to account for the complex stress-strain behaviour of sand. Different wall geometries with varying spatiality ratios (breadth to height) and different deformation modes of the rigid wall were considered. The results show a high dependency of the earth pressure coefficients on the wall spatiality ratio. For a smooth wall, a good agreement with the approach of the German standard DIN 4085 is obtained. The wall displacement necessary to reach the maximum earth pressure is also dependent on the wall geometry, with the displacement decreasing with increasing spatiality ratio. The analysis of the earth pressure distributions shows that the earth pressure increase due to spatiality occurs almost only in the lower half of the wall.
UR - http://www.scopus.com/inward/record.url?scp=84860237298&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84860237298
SN - 9780415592390
T3 - Numerical Methods in Geotechnical Engineering - Proceedings of the 7th European Conference on Numerical Methods in Geotechnical Engineering
SP - 729
EP - 734
BT - Numerical Methods in Geotechnical Engineering
T2 - 7th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2010
Y2 - 2 June 2010 through 4 June 2010
ER -