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Model experiments on geosynthetic reinforced piled embankments, 3D test series

SJM Van Eekelen and Adam Bezuijen UGent (2012) 2nd European conference on physical modelling in geotechnics, Proceedings. p.1-10
abstract
In the Netherlands, several field measurements were carried out in piled embankments with a geosynthetic basal reinforcement (GR). This paper presents a series of nineteen 3D model experiments on piled embankments. Purpose of the tests was to find an explanation why the calculated GR strains exceed the GR strains measured in the field. This paper focuses on the starting points of the test series, the test set-up and the scaling rules and gives a summary of the results. Van Eekelen et al., (2011b and 2011c) describe the results of the tests extensively. Five starting points were leading to the develop- ment of the test set-up. (1) Possibility to evaluate the two calculation steps separately, (2) Possibility to evaluate the influence of consolidation of the subsoil, (3) Inclusion of GR, (4), Modelling the fill realistically, (5) a realistic stress level and scale. For the test conditions (static load, laboratory scale), it was found that consolidation of the subsoil results in an increase of arching. This is not in agreement with the current calculation models. Loading on the GR is concentrated on the strips lying above and between adjacent piles (the “GR strips”) which is in agreement with the current calculation models. The measured load on a GR strip has the distribution of an inverse triangle, although the load may be even more concentrated around the pile caps than this indicates. This is not in agreement with the current calculation models. Implementing this in the CUR/EBGEO calculation model results in 19-26% less GR strain.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
experiments, piled embankments, arching, Geosynthetic reinforcement, membranes
in
2nd European conference on physical modelling in geotechnics, Proceedings
pages
1 - 10
publisher
Ghent University, Department of Civil engineering
place of publication
Ghent, Belgium
conference name
2nd European conference on physical modelling in geotechnics (EUROFUGE - 2012)
conference location
Delft, The Netherlands
conference start
2012-04-23
conference end
2012-04-24
language
English
UGent publication?
yes
classification
C1
copyright statement
I have retained and own the full copyright for this publication
id
2097763
handle
http://hdl.handle.net/1854/LU-2097763
date created
2012-05-03 10:24:59
date last changed
2012-05-04 10:57:11
@inproceedings{2097763,
  abstract     = {In the Netherlands, several field measurements were carried out in piled embankments with a geosynthetic basal reinforcement (GR). This paper presents a series of nineteen 3D model experiments on piled embankments. Purpose of the tests was to find an explanation why the calculated GR strains exceed the GR strains measured in the field. This paper focuses on the starting points of the test series, the test set-up and the scaling rules and gives a summary of the results. Van Eekelen et al., (2011b and 2011c) describe the results of the tests extensively. Five starting points were leading to the develop- ment of the test set-up. (1) Possibility to evaluate the two calculation steps separately, (2) Possibility to evaluate the influence of consolidation of the subsoil, (3) Inclusion of GR, (4), Modelling the fill realistically, (5) a realistic stress level and scale. For the test conditions (static load, laboratory scale), it was found that consolidation of the subsoil results in an increase of arching. This is not in agreement with the current calculation models. Loading on the GR is concentrated on the strips lying above and between adjacent piles (the {\textquotedblleft}GR strips{\textquotedblright}) which is in agreement with the current calculation models. The measured load on a GR strip has the distribution of an inverse triangle, although the load may be even more concentrated around the pile caps than this indicates. This is not in agreement with the current calculation models. Implementing this in the CUR/EBGEO calculation model results in 19-26\% less GR strain.},
  author       = {Van Eekelen, SJM and Bezuijen, Adam},
  booktitle    = {2nd European conference on physical modelling in geotechnics, Proceedings},
  keyword      = {experiments,piled embankments,arching,Geosynthetic reinforcement,membranes},
  language     = {eng},
  location     = {Delft, The Netherlands},
  pages        = {1--10},
  publisher    = {Ghent University, Department of Civil engineering},
  title        = {Model experiments on geosynthetic reinforced piled embankments, 3D test series},
  year         = {2012},
}

Chicago
Van Eekelen, SJM, and Adam Bezuijen. 2012. “Model Experiments on Geosynthetic Reinforced Piled Embankments, 3D Test Series.” In 2nd European Conference on Physical Modelling in Geotechnics, Proceedings, 1–10. Ghent, Belgium: Ghent University, Department of Civil engineering.
APA
Van Eekelen, S., & Bezuijen, A. (2012). Model experiments on geosynthetic reinforced piled embankments, 3D test series. 2nd European conference on physical modelling in geotechnics, Proceedings (pp. 1–10). Presented at the 2nd European conference on physical modelling in geotechnics (EUROFUGE - 2012), Ghent, Belgium: Ghent University, Department of Civil engineering.
Vancouver
1.
Van Eekelen S, Bezuijen A. Model experiments on geosynthetic reinforced piled embankments, 3D test series. 2nd European conference on physical modelling in geotechnics, Proceedings. Ghent, Belgium: Ghent University, Department of Civil engineering; 2012. p. 1–10.
MLA
Van Eekelen, SJM, and Adam Bezuijen. “Model Experiments on Geosynthetic Reinforced Piled Embankments, 3D Test Series.” 2nd European Conference on Physical Modelling in Geotechnics, Proceedings. Ghent, Belgium: Ghent University, Department of Civil engineering, 2012. 1–10. Print.