Issue |
MATEC Web Conf.
Volume 149, 2018
2nd International Congress on Materials & Structural Stability (CMSS-2017)
|
|
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Article Number | 02029 | |
Number of page(s) | 6 | |
Section | Session 2 : Structures & Stability | |
DOI | https://doi.org/10.1051/matecconf/201814902029 | |
Published online | 14 February 2018 |
Soil treatment in flood areas: case of the road RP4209, in the province of Kenitra (Morocco)
Mohammed V University, Mohammadia School of Engineering, L3GIE, Rabat, MOROCCO
The Moroccan road network has a linear of more than 57,000 km divided into national, regional, provincial and unclassified roads. Population growth, the transport of goods and the mobility of people require the construction of new links between regions and the maintenance of existing ones. Indeed, several factors, such as rainfall and floods, can cause enormous damage to existing infrastructure. Among the most at-risk areas is the GHARB region, especially the province of Kénitra, represented in this study by Provincial Road RP4209, which includes flood-prone areas with abundant watercourses, associated with poor type of soil. To mitigate these phenomena and to try to reduce their impacts, in particular on the components of a road, one of the appropriate solutions remains the treatment of soils. This process is increasingly practiced in the construction industry, improves the geotechnical and mechanical characteristics of soils without having to go through the contribution of materials from other regions, all for the purpose of a valuation of materials in place by treatment with lime, different hydraulic binders, or industrial products, which will provide an economic and environmental gain
Résumé
Le réseau routier marocain compte un linéaire de plus de 57.000 kms réparties en routes nationales, régionales, provinciales et routes non classées. La croissance démographique, le transport de marchandises ainsi que la mobilité des personnes imposent la construction de nouvelles liaisons entre régions et l’entretien de celles déjà existantes. En effet, plusieurs facteurs, tels que les précipitations et les inondations, peuvent engendrer d’énormes dégâts sur l’infrastructure existante. Parmi les régions les plus à risques, on trouve la région du GHARB en particulier la province de Kénitra, représentée dans cette étude par la route provinciale RP4209, qui regroupe des zones inondables avec l’abondance des cours d’eau, associée à la mauvaise nature du sol. Pour pallier à ces phénomènes et tenter de diminuer leurs impacts, en particulier sur les composantes d’une route, l’une des solutions appropriées demeure le traitement des sols. Ce procédé qu’est de plus en plus pratiqué dans le milieu du BTP, améliore les caractéristiques géotechniques et mécaniques des sols sans avoir à passer par l’apport des matériaux d’autres régions, tout cela dans le but d'une valorisation des matériaux en place par un traitement à la chaux, aux différents liants hydrauliques, ou aux produits industriels, ce qui procurera un gain économique ainsi qu’environnemental [1].
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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