Development of an excavatability test for backfill materials: numerical and experimental studies
| Autor: | Sylvain Murgier, François de Larrard, Caroline Morin, Christophe Dano, Michel Hardy, Hélène Dumontet, Thierry Sedran |
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| Přispěvatelé: | CERIB, Département Matériaux (IFSTTAR/MAT), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-PRES Université Nantes Angers Le Mans (UNAM), Direction scientifique (IFSTTAR/DS), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Institut Jean le Rond d'Alembert (DALEMBERT), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Unité de Science du Sol (Orléans) (URSols), Institut National de la Recherche Agronomique (INRA), EDF/CEIDRE, EDF (EDF)-CEIDRE, GéoMécanique, Laboratoire sols, solides, structures - risques [Grenoble] (3SR ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut Jean Le Rond d'Alembert (DALEMBERT), Unité de Science du Sol, INRA, Laboratoire sols, solides, structures - risques [Grenoble] (3SR), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC) |
| Rok vydání: | 2018 |
| Předmět: |
excavatability
Engineering business.industry impact energy [SPI.GCIV.GEOTECH]Engineering Sciences [physics]/Civil Engineering/Géotechnique 0211 other engineering and technologies punching test 02 engineering and technology Geotechnical Engineering and Engineering Geology Test (assessment) Excavatability Laboratory test 021105 building & construction cement-treated materials Forensic engineering Geotechnical engineering Cementitious repeatability business Punching 021101 geological & geomatics engineering Civil and Structural Engineering |
| Zdroj: | Canadian Geotechnical Journal Canadian Geotechnical Journal, NRC Research Press, 2018, 55 (1), pp.69-78. ⟨10.1139/cgj-2016-0534⟩ |
| ISSN: | 1208-6010 0008-3674 |
| DOI: | 10.1139/cgj-2016-0534 |
| Popis: | International audience; This paper describes research done on a new testing device including its laboratory test procedure; namely, a laboratory punching test for cementitious backfill materials that evaluates their excavatability with a pick. Three-dimensional and two-dimensional numerical studies using a finite element method were carried out according to calibrated parameters of the material obtained by triaxial tests. This made it possible to study the behavior of the backfill material under action induced by a tool (a pick) as well as to optimize the geometry of the punching test specimen. This paper provides detailed information and results for the experimental study of this laboratory test. Attention was particularly focused on energy relating to displacement as well as types of ruptures. The behavior of these types of materials was found to be greatly influenced by gravel in the material. Repeatability of the test was also studied. Finally, a method for this punching test of backfill materials is also provided. |
| Databáze: | OpenAIRE |
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