{"id":24133,"date":"2023-05-31T10:18:16","date_gmt":"2023-05-31T08:18:16","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/protection-de-berges-le-fourcat\/"},"modified":"2024-01-26T12:05:56","modified_gmt":"2024-01-26T11:05:56","slug":"protection-de-berges-le-fourcat","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/protection-de-berges-le-fourcat\/","title":{"rendered":"PROTECTION DE BERGES – LE FOURCAT"},"content":{"rendered":"
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Probl\u00e8me<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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Le passage de la temp\u00eate Alex dans la vall\u00e9e de la V\u00e9subie en octobre 2020 a provoqu\u00e9 d’importants d\u00e9g\u00e2ts. A certains endroits, il est tomb\u00e9 en 24h l’\u00e9quivalent d’une ann\u00e9e de pr\u00e9cipitations. La subdivision des routes de Roquebilli\u00e8re a alors d\u00fb prendre des mesures d’urgence pour r\u00e9tablir l’axe routier reliant la vall\u00e9e de la V\u00e9subie \u00e0 la plaine du Var. commune de Lantosque, la rivi\u00e8re a emport\u00e9 une grosse partie de la berge en rive droite, mena\u00e7ant les habitations voisines. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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Solution<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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La soci\u00e9t\u00e9 France MACCAFERRI a r\u00e9alis\u00e9 une \u00e9tude proposant un ouvrage de d\u00e9fense de berge. Le confortement de berge est assur\u00e9 par la mise en place d\u2019un mur poids en gabions reposant sur une assise anti affouillement en Matelas Reno Plus de 4m de longueur sur une longueur totale de 270m. Les gabions et matelas Reno sont des techniques couramment utilis\u00e9es pour soutenir et prot\u00e9ger de l\u2019\u00e9rosion les berges soumises \u00e0 des \u00e9coulements de type fluviaux ou torrentiels. Ces structures ont une grande r\u00e9sistance m\u00e9canique tout en conservant une souplesse n\u00e9cessaire pour s\u2019adapter \u00e0 d\u2019\u00e9ventuels mouvements de sols, d\u2019\u00e9rosion (\u2026). Leur caract\u00e8re drainant \u00e9vite la mise en charge et la saturation des sols \u00e0 l\u2019arri\u00e8re et all\u00e8ge donc la pouss\u00e9e du terrain. Enfin, ils permettent d\u2019obtenir des performances hydrauliques identiques \u00e0 des enrochements d\u2019\u00e9paisseur 3 \u00e0 4 fois sup\u00e9rieure tout en utilisant un calibre de mat\u00e9riaux de l\u2019ordre de 90\/180mm. Pour lutter contre l\u2019affouillement en pied de massif, les matelas Reno Plus sont des structures sp\u00e9cialement \u00e9tudi\u00e9es pour se d\u00e9former \u00e0 mesure de la formation d\u2019une fosse d\u2019\u00e9rosion devant l\u2019ouvrage. La longueur du tapis de matelas doit pour cela \u00eatre sup\u00e9rieure \u00e0 1.5 \u00e0 2 fois la profondeur d\u2019affouillement pr\u00e9visible. A. Le mur gabion pr\u00e9sente une hauteur de 3m avec des modules de 1m de hauteur et de largeurs respectives, du pied vers la t\u00eate : 2m \/ 1m50 \/1m. Il repose sur un matelas Reno Plus de 4m de longueur ; la base des gabions faisant 2m, le matelas Reno Plus d\u00e9passera de 2m dans l\u2019\u00e9coulement.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>

Used Products<\/h2>
\"Gabions\"<\/div>
Gabions<\/h6>Le gabion Maccaferri est une bo\u00eete en grillage m\u00e9tallique \u00e0 double torsion de tailles variables, divis\u00e9e uniform\u00e9ment en cellules internes, interco<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div>
\"Matelas<\/div>
Matelas Reno Plus<\/h6>Les protections traditionnelles des berges des rivi\u00e8res r\u00e9alis\u00e9es \u00e0 l\u2019aide de pierres en vrac (enrochement) n\u00e9cessitent une couche \u00e9paisse de mat\u00e9r<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

La soci\u00e9t\u00e9 France MACCAFERRI a r\u00e9alis\u00e9 une \u00e9tude proposant un ouvrage de d\u00e9fense de berge. 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