[ Gestion des instabilités de terrain au Maroc (cartographie et sécurité) ]
Volume 21, Issue 1, August 2017, Pages 25–36
Mohamed Yazidi1, Fouad Benziane2, Abdelaziz Yazidi3, Khadija Nabih4, and Noureddine Eloutassi5
1 Laboratoire des sciences de la Terre, Centre Régional des Métiers de l’Education et de la Formation, Marrakech-Safi, Morocco
2 Laboratoire de cartographie géologique, Ecole Nationale de l’Industrie Minérale (ENIM), Rabat, Morocco
3 Laboratoire de cartographie géologique, Ecole Nationale de l’Industrie Minérale (ENIM), Rabat, Morocco
4 Laboratoire de Chimie Organique, Délégation du MENFP, AREF, Marrakech - Safi, Morocco
5 Laboratoire des Sciences de la vie, Centre Régional des Métiers de l'Education et de la Formation/CRMEF/BP 49/30000/VN, Fès, Morocco
Original language: French
Copyright © 2017 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In Morocco, as in several regions of the world, field instabilities are one of the most serious problems on several levels: social, economic and environmental. This study is aimed at the safety of people, the protection of infrastructures and the environment, and on the other hand the forecasting of areas to be avoided for future development. Landslides are polygenic sets that result from the combined action of complex factors. Some, permanent factors, create the essential conditions for instabilities; the others, called dynamic factors, act under the dependence of the former and play the role of detonator. The geological complexity of the land concerned, the diagnosis of the phenomenon is sometime delicate. Risk prevention and protection of populations require, at least for the most threatening sites, delicate and costly studies and recognitions. To stabilize and delineate the damage, several solutions have been proposed and based on the use of various techniques. On the other hand, the preparation of a guide of the stabilization to reinforce the unstable areas has a paramount importance for the development of the regions, which are subjected to rapid and often disorderly urban growth.
Author Keywords: Sustainable development, guide of the stabilization, landslides, Rif, security, risk areas.
Volume 21, Issue 1, August 2017, Pages 25–36
Mohamed Yazidi1, Fouad Benziane2, Abdelaziz Yazidi3, Khadija Nabih4, and Noureddine Eloutassi5
1 Laboratoire des sciences de la Terre, Centre Régional des Métiers de l’Education et de la Formation, Marrakech-Safi, Morocco
2 Laboratoire de cartographie géologique, Ecole Nationale de l’Industrie Minérale (ENIM), Rabat, Morocco
3 Laboratoire de cartographie géologique, Ecole Nationale de l’Industrie Minérale (ENIM), Rabat, Morocco
4 Laboratoire de Chimie Organique, Délégation du MENFP, AREF, Marrakech - Safi, Morocco
5 Laboratoire des Sciences de la vie, Centre Régional des Métiers de l'Education et de la Formation/CRMEF/BP 49/30000/VN, Fès, Morocco
Original language: French
Copyright © 2017 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
In Morocco, as in several regions of the world, field instabilities are one of the most serious problems on several levels: social, economic and environmental. This study is aimed at the safety of people, the protection of infrastructures and the environment, and on the other hand the forecasting of areas to be avoided for future development. Landslides are polygenic sets that result from the combined action of complex factors. Some, permanent factors, create the essential conditions for instabilities; the others, called dynamic factors, act under the dependence of the former and play the role of detonator. The geological complexity of the land concerned, the diagnosis of the phenomenon is sometime delicate. Risk prevention and protection of populations require, at least for the most threatening sites, delicate and costly studies and recognitions. To stabilize and delineate the damage, several solutions have been proposed and based on the use of various techniques. On the other hand, the preparation of a guide of the stabilization to reinforce the unstable areas has a paramount importance for the development of the regions, which are subjected to rapid and often disorderly urban growth.
Author Keywords: Sustainable development, guide of the stabilization, landslides, Rif, security, risk areas.
Abstract: (french)
Au Maroc, comme plusieurs régions du monde, les instabilités de terrain constituent un des plus graves problèmes sur plusieurs niveaux : social, économique et environnemental. Cette étude cible d'une part la sécurité des gens, la protection des infrastructures et de l'environnement et d'autre part la prévision des zones à éviter pour des futurs aménagements. Les instabilités de terrain sont des ensembles polygéniques qui résultent de l’action combinée de facteurs complexes ; les uns permanents, créent les conditions indispensables aux instabilités ; les autres, dits facteurs dynamiques, agissent sous la dépendance des premiers et jouent le rôle de détonateur. La complexité géologique des terrains concernés, rend parfois délicat le diagnostic du phénomène. La prévention des risques et la protection des populations nécessitent, au moins pour les sites les plus menaçants, des études et des reconnaissances délicates et coûteuses. Pour stabiliser et délimiter les dégâts, plusieurs solutions ont été proposées et différentes mesures ont été prises. Dans l'ensemble, elles sont basées sur l’emploi de diverses techniques. D’autre part, l’élaboration d’un guide de confortement de ces zones instables est d’une importance capitale pour l’aménagement de ces régions qui sont soumises à une croissance urbaine rapide et souvent désordonnée.
Author Keywords: développement durable , guide de confortement , instabilités de terrain , Rif , sécurité , zones à risque.
How to Cite this Article
Mohamed Yazidi, Fouad Benziane, Abdelaziz Yazidi, Khadija Nabih, and Noureddine Eloutassi, “Management of landslide risks in Morocco (cartography and security),” International Journal of Innovation and Applied Studies, vol. 21, no. 1, pp. 25–36, August 2017.
