| Issue |
E3S Web Conf.
Volume 569, 2024
GeoAmericas 2024 - 5th Pan-American Conference on Geosynthetics
|
|
|---|---|---|
| Article Number | 27003 | |
| Number of page(s) | 5 | |
| Section | MSE 3 | |
| DOI | https://doi.org/10.1051/e3sconf/202456927003 | |
| Published online | 19 September 2024 | |
Stability design of a geosynthetic reinforced rock cuttings wall
1 Lombardi Ingénierie SAS, Pôle Géotechnique et Travaux Souterrains, 69003 Lyon, France
2 Lombardi Ingegneria SRL, IT-20145 Milano, Italy
3 3SR laboratory, Grenoble Alpes University, 38400 St-Martin d’Hères, France
* Corresponding author: Alexandre.granet@lombardi.group
Rocks excavation with tunnel boring machines induces a lot of cuttings. This granular material needs to be stored. When reinforced by geosynthetics, significant tensile stresses can be obtained in the resulting composite structure which allows to build steep slopes. A real case study of a reinforced rock cuttings wall is presented in this paper. To study accurately this complex problem, two calculation methods were used: a limit equilibrium (using the Bishop criteria), classically used for these kinds of stability problems and two-dimensional finite element calculations. These two methods are different and give different results. The FE calculation is the more representative and the more conservative method for such designs when considering the studied case.
© The Authors, published by EDP Sciences, 2024
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