{"id":110710,"date":"2025-10-29T08:00:38","date_gmt":"2025-10-29T07:00:38","guid":{"rendered":"https:\/\/www.maccaferri.com\/fr\/success-stories\/mise-en-conformite-du-barrage-de-pessoulens-pessoulens-32\/"},"modified":"2026-02-16T15:39:43","modified_gmt":"2026-02-16T14:39:43","slug":"mise-en-conformite-du-barrage-de-pessoulens-pessoulens-32","status":"publish","type":"stories","link":"https:\/\/www.maccaferri.com\/fr\/exemples-de-r\u00e9ussites\/mise-en-conformite-du-barrage-de-pessoulens-pessoulens-32\/","title":{"rendered":"Mise en conformit\u00e9 du barrage de Pessoulens, Pessoulens (32)"},"content":{"rendered":"
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    \"\"<\/div>\n <\/div>\n <\/div>\n
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    Avant les travaux<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Lit majeur du coursier<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Vue du d\u00e9versoir<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    D\u00e9versoir en seuil de 1m de hauteur en gabions<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Vue g\u00e9n\u00e9rale de l'ouvrage pr\u00e9visionnel de Pessoulens<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <\/div>\n <\/div>

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    Challenge<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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    Le barrage de Pessoulens est une digue en remblai, con\u00e7u en 1974 pour une capacit\u00e9 de stockage de 707,000m3 d’eau. Il pr\u00e9sente une longueur en cr\u00eate de 206m pour une hauteur maximale de 15m. Il est muni d’un \u00e9vacuateur principal en b\u00e9ton situ\u00e9 au centre de la cr\u00eate et d’un \u00e9vacuateur des crues secondaire en terre enherb\u00e9 en rive droite de la retenue ; les 2 \u00e9vacuateurs se rejoignent dans un m\u00eame bassin de dissipation. L’\u00e9vacuateur principal pr\u00e9sentant des signes de d\u00e9faillances structurelles, il a \u00e9t\u00e9 d\u00e9cid\u00e9 de le condamner et d’augmenter la capacit\u00e9 de l’\u00e9vacuateur secondaire. Pour se faire, des travaux d’\u00e9largissement du chenal et de protection \u00e0 la surverse ont \u00e9t\u00e9 \u00e9tudi\u00e9s. Une solution en matelas gabion a \u00e9t\u00e9 retenu par le maitre d’\u0153uvre. <\/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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    Maccaferri a \u00e9t\u00e9 consult\u00e9 au stade de la r\u00e9ponse \u00e0 l’appel d’offre pour proposer une solution p\u00e9renne en gabions. L’\u00e9vacuateur a \u00e9t\u00e9 con\u00e7u pour supporter une crue de p\u00e9riode de retour 5000 ans avec un d\u00e9bit estim\u00e9 \u00e0 44m3\/s pour une longueur d\u00e9versante de 24m. Compte tenu des fortes sollicitations hydrauliques, une conception hybride innovante a \u00e9t\u00e9 propos\u00e9e, en retravaillant la pente longitudinale du coursier. En, effet les calculs ont mis en \u00e9vidence que les matelas Reno\u00ae Plus de 23cm (matelas Reno\u00ae avec tirants verticaux X-ties) \u00e9taient en mesure de reprendre les contraintes hydrauliques jusqu’\u00e0 une pente de 5,5%; la pente longitudinale initiale du coursier \u00e9tant plus importante (environ 3H:1V), des seuils de 1m de hauteur en gabions ont \u00e9t\u00e9 dispos\u00e9s pour r\u00e9duire la pente et rendre la solution viable. En lit majeur du coursier, des matelas Reno\u00ae de 23cm ont \u00e9t\u00e9 mis en place. Les \u00e9quipes de France Maccaferri ont r\u00e9alis\u00e9 la mise en \u0153uvre des 90m3 de gabions et des 2500m\u00b2 de matelas Reno\u00ae conform\u00e9ment \u00e0 la norme NFP 94-325 et du r\u00e9f\u00e9rentiel ASQUAL R\u00e9alisation des Ouvrages en Gabions <\/p>\n

    (ROG).<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>

    Used Products<\/h2>
    \"Gabions\"<\/div>
    Gabions<\/h6>Un large portefeuille de solutions Maccaferri propose une gamme \u00e9tendue de solutions sur mesure pour r\u00e9pondre \u00e0 chaque besoin sp\u00e9cifique. Le<\/span>Voir\n \n <\/a>
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    Matelas Reno Plus<\/h6>RenoMac PlusS’appuyant sur le succ\u00e8s du Matelas Reno Plus, le RenoMac Plus offre les m\u00eames avantages en termes de durabilit\u00e9 et de performan<\/span>Voir\n \n <\/a>
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    Maccaferri a \u00e9t\u00e9 consult\u00e9 au stade de la r\u00e9ponse \u00e0 l'appel d'offre pour proposer une solution p\u00e9renne en gabions. L'\u00e9vacuateur a \u00e9<\/p>\n","protected":false},"featured_media":98593,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-110710","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":[113687,113624],"applications":[103496,103496],"solutions":[103613],"sectors":[103460]},"yoast_head":"\nMise en conformit\u00e9 du barrage de Pessoulens, Pessoulens (32) - Maccaferri France<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez nos r\u00e9ussites : Mise en conformit\u00e9 du barrage de Pessoulens, Pessoulens (32). 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