Experimental Characterization of Shape of an Aggregate by a Numerical Value—Application to Senegalese Basaltic Aggregates for Rail Transport — Oak Academic Publishing
Research ArticleOpen AccessGoogle Scholar indexed
Experimental Characterization of Shape of an Aggregate by a Numerical Value—Application to Senegalese Basaltic Aggregates for Rail Transport
Civil Engineering Department, Higher Polytechnic School, Cheikh Anta Diop University of Dakar, Dakar, Senegal
,
Civil Engineering Department, Higher Polytechnic School, Cheikh Anta Diop University of Dakar, Dakar, Senegal
,
Civil Engineering Department, Higher Polytechnic School, Cheikh Anta Diop University of Dakar, Dakar, Senegal
1 Civil Engineering Department, Higher Polytechnic School, Cheikh Anta Diop University of Dakar, Dakar, Senegal
2 Civil Engineering Department, Higher Polytechnic School, Cheikh Anta Diop University of Dakar, Dakar, Senegal
3 Civil Engineering Department, Higher Polytechnic School, Cheikh Anta Diop University of Dakar, Dakar, Senegal
This article first talks about railways in general and ballast in particular. An inventory is then made on the modernization of the Senegalese ballast railways. In the second phase, an experimental work of characterization of basaltic aggregates of Diack (Locality of Ngoundiane, Thiès region, Senegal) is presented. The grain size studied is 25/50 mm as for any material studied for use as railway ballast. Experimental work presented consists of the characterization of the shape of an aggregate using the NF P 18-301 standard. The test consists of comparing the volume of the aggregate to that of an equivalent sphere with the largest diameter of the aggregate, by calculating the average volume coefficient. With a Representative Elementary Volume (REV) of 6 aggregates, the volume coefficient “C v ” fluctuates between 0.27 and 0.49 with an average volume coefficient of 0.39 which is well above 0.15 . The grains studied are polyhedral and therefore have a high mechanical resistance.
Regional Express Train (TER) Dakar (2016) Summary of the Strategic Environmental and Social Study. African Development Bank Group. https://www.afdb.org/fileadmin/uploads/afdb/Documents/Environmental-and-Social-Assessments/Senegal-Projet_de_Train_Express_Regional_de_Dakar-Resume_EESS-Novembre_2016.pdf
Sow, L. (2019) Ballasted Railways in Senegal-Characterization of Bandia Limestone and Diack Basalt for Use as Ballast Materials. International Journal of Applied Engineering Research, 14, 3396-3405. https://www.ripublication.com/ijaer19/ijaerv14n15_10.pdf
Kansango, M.P., Kavula, N.E., Sow, L. and Lunda, H.J.M. (2019) Cartographie Géotechnique par Deep Learning Approche par Réseaux de Neurones Artificiels. European Scientific Journal, 15, 233-251. https://doi.org/10.19044/esj.2019.v15n12p233
Deiros, I., Voivret, C., Combe, G. and Emeriault, F. (2016) Quantifying Degradation of Railway Ballast Using Numerical Simulations of Micro-Deval Test and in-Situ Conditions. Procedia Engineering, 146, 1016-1023. https://doi.org/10.1016/j.proeng.2016.06.096
Diedhiou, A., Sow, L. and Dione, A. (2020) Contribution to Comparative Study of Physical-Chemical Characteristics of Diack Basalt and Bandia Limestone for Use in Railway Engineering. Geomaterials, 10, 25-34. https://doi.org/10.4236/gm.2020.102002
Deiros, I., Combe, G., Emeriault, F., Voivret, C. and Ferellec, J.F. (2019) X-Ray CT Analysis of the Evolution of Ballast Grain Morphology along a Micro-Deval Test: Key Role of the Asperity Scale. Granular Matter, 21, 1-12. https://doi.org/10.1007/s10035-019-0881-y
Sow, L. (2018) Approche couplée expérimentation-modélisation multi-échelle pour la détermination du comportement mécanique des graves routières traitées aux liants. Application à la valorisation des Machefers d’Incinération de Déchets Non Dangereux. PhD Thesis, INSA Rennes, France, 200. https://www.theses.fr/2018ISAR0001
Sow, L., Bernard, F., Kamali-Bernard, S. and Kébé, C.M.F. (2018) Experiment-Based Modelling of the Mechanical Behaviour of Non-Hazardous Waste Incineration Bottom Ashes Treated by Hydraulic Binder. MATEC Web of Conferences, 149. https://doi.org/10.1051/matecconf/201814901038
Sow, L., Bernard, F., Kamali-Bernard, S. and Kébé, C.M.F. (2018) Mesoscale Modeling of the Temperature-Dependent Viscoelastic Behavior of a Bitumen-Bound Gravels. Coupled Systems Mechanics, 7, 509-524.
Azéma, é. (2007) Digital Study of Granular Materials with Polyhedral Grains: Quasi-Static Rheology, Vibration Dynamics, Application to the Ballast Stuffing Process. PhD Thesis, Montpellier University, Montpellier, France.
Saussine, G. (2004) Contribution à la modélisation de granulats tridimensionnels: Application au ballast. PhD Thesis, Montpellier University, Montpellier, France. https://tel.archives-ouvertes.fr/tel-00077519
Ricci, L. (2006) Discrete and Continuous Modelling of the Ballasted Railway Track. PhD Thesis, Navier-Laboratory Institute Material Analysis and Identification (LCPC/ENPC), France.
Guérin, N. (1996) Experimental and Numerical Approach to the Behaviour of Railway Ballast. PhD Thesis, National School of Bridges and Roads (ENPC), France.
Calon, N., Lambert, L., Robinet, A., Trinh, V.N., Cui, Y.J., Canou J., Dupla, J.C., Tang, A.M. and Schoen, O. (2010) Hydromechanical Characterization of Materials Used in Old Railway Platforms.
Sow, L., Kamali-Bernard, S., Bartier, O., Mauvoisin, G. and Bernard, F. (2018) Experimental Estimation of the Elastic Modulus of Non-Hazardous Waste Incineration Bottom Ash Aggregates by Indentation Tests-Microanalysis of particles by Scanning Electron Microscopy. Advanced Materials Research, 1145, 80-84. https://doi.org/10.4028/www.scientific.net/AMR.1145.80
Sow, L., Kamali-Bernard, S., Mauvoisin, G., Bartier, O. and Bernard, F. (2019) Original Experimental Campaign of Indentation Instrumented on Aggregates of Non-Hazardous Waste Incineration Bottom Ash to Study the Heterogeneity of their Rigidity. Key Engineering Materials, 805, 177-182. https://doi.org/10.4028/www.scientific.net/KEM.805.177
Robinet, A. (2008) The Treated form Layers in Railway Bedding Structures. Thesis for an Engineering Degree from CNAM, France.
Sow, L. (2020) Study of the Behaviour of Senegalese Ballast Materials during Compaction with the C-Mould: Case of Bandia Limestone and Diack Basalt. Key Engineering Materials, 831, 81-86. https://doi.org/10.4028/www.scientific.net/KEM.831.81
Elysée, K.N., Portance, K.M., Sow, L., Bilez, N.B., Corneille, K.M. and Obed, T.K. (2020) Coupling Discriminating Statistical Analysis and Artificial Intelligence for Geotechnical Characterization of the Kampemba’s Municipality Soils (Lubumbashi, DR Congo). Geomaterials, 10, 35-55. https://doi.org/10.4236/gm.2020.103003
Trinh, V.N. (2011) Comportement hydromécanique des matériaux constitutifs de plateformes ferroviaires anciennes. PhD Thesis, Université Paris-Est, France.
Kouroussis, G. (2009) Modelling of the Vibration Effects of Rail Traffic on the Environment. PhD Thesis, Polytechnic Faculty of Mons, France.
Athanassiadis, A. G., Miskin, M. Z., Kaplan, P., Rodenberg, N., Lee, S.H., Merritt, J., Brown, E., Amend, J., Lipson, H. and Jaeger, H.M. (2017) Particle Shape Effects on the Stress Response of Granular Packings. Soft Matter, 10, 48-59. https://doi.org/10.1039/C3SM52047A
Börzsönyi, T., Somfai, E., Szabó, B., Wegner, S., Ashour, A. and Stannarius, R. (2017) Elongated Grains in a Hopper. EPJ Web of Conferences, 140, Article No. 06017. https://doi.org/10.1051/epjconf/201714006017
Aissoun, B.M. (2011) Etude de l’influence des caractéristiques des granulats sur la performance des bétons fluides à rhéologie adaptée. Sherbrooke (Québec), Canada. https://savoirs.usherbrooke.ca/bitstream/handle/11143/1590/MR83651.pdf?sequence=1&isAllowed=y
Hafid, H, (2011) Influence des paramètres morphologiques des granulats sur le comportement rhéologique des bétons frais: Etude sur systèmes modèles. PhD Thesis, Université Paris-Est, France, 160. https://tel.archives-ouvertes.fr/tel-00695922/document
Ouhbi, N. (2017) Une description morphologique précise des grains pour l’étude numérique des propriétés mécaniques du ballast ferroviaire. PhD Thesis, Université Paris-Est, France. https://pastel.archives-ouvertes.fr/tel-01730240
AFNOR (2003) Granulats pour ballasts de voies ferrées. Standard, France.