{"id":110314,"date":"2025-10-29T07:56:10","date_gmt":"2025-10-29T06:56:10","guid":{"rendered":"https:\/\/www.maccaferri.com\/fr\/success-stories\/eboulements-rd437-castelnau-tursan\/"},"modified":"2026-02-16T15:38:04","modified_gmt":"2026-02-16T14:38:04","slug":"eboulements-rd437-castelnau-tursan","status":"publish","type":"stories","link":"https:\/\/www.maccaferri.com\/fr\/exemples-de-r\u00e9ussites\/eboulements-rd437-castelnau-tursan\/","title":{"rendered":"EBOULEMENTS RD437 CASTELNAU TURSAN"},"content":{"rendered":"
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    \"\"<\/div>\n <\/div>\n <\/div>\n
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    Pendant les travaux – r\u00e9alisation du remblai renforc\u00e9<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Pendant les travaux – r\u00e9alisation du remblai renforc\u00e9 en TerraMesh<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    A la fin des travaux<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Coupe type du remblai renforc\u00e9<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Vue du remblai renforc\u00e9 <\/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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    A la suite d’\u00e9v\u00e9nements pluvieux intenses survenus fin 2020, trois zones d’\u00e9boulements en rive et sur la chauss\u00e9e de la RD437 \u00e0 Castelnau Tursan se sont d\u00e9clar\u00e9s, rendant cette route impraticable \u00e0 la circulation. L’\u00e9tude g\u00e9otechnique mettra en \u00e9vidence que les glissements observ\u00e9s sont dus \u00e0 une accumulation importante d’eau sous la chauss\u00e9e et dans le talus, en pr\u00e9sence de mat\u00e9riaux tr\u00e8s sensibles aux variations hydrom\u00e9triques. Ce ph\u00e9nom\u00e8ne sur une faible p\u00e9riode peut saturer les terrains et provoquer une chute de la coh\u00e9sion des sols en place. <\/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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    Dans ce contexte, Spie Batignolles Val\u00e9rian a sollicit\u00e9 France Maccaferri afin de proposer une solution en mesure de conforter les zones \u00e9boul\u00e9es, en lieu et place d’un rideau de palplanches ancr\u00e9es pr\u00e9vu initialement. Le choix de la solution s’est port\u00e9 naturellement vers le Terramesh System, un proc\u00e9d\u00e9 de sout\u00e8nement en remblai renforc\u00e9 form\u00e9 d’un parement gabion en continuit\u00e9 d’une nappe de renforcement. Afin d’assurer la stabilit\u00e9 des ouvrages, les modules Terramesh ont \u00e9t\u00e9 associ\u00e9s \u00e0 des g\u00e9ogrilles de renfort type Paragrid 50. L’ensemble forme un ouvrage monolithique capable de reprendre de fortes sollicitations sur des hauteurs importantes. La mise en oeuvre d’un g\u00e9ocomposite de drainage type Macdrain W1051 \u00e0 l’interface entre le terrain naturel excav\u00e9 et le remblai granulaire permet de collecter les arriv\u00e9es d’eau et ainsi \u00e9viter la pouss\u00e9e hydrostatique sur le massif renforc\u00e9. De plus, la conception min\u00e9rale du Terramesh System permet un drainage de l’ensemble du parement. France Maccaferri a r\u00e9alis\u00e9 les notes de dimensionnement, les coupes types et la mise en oeuvre sous certification Asqual ROG (R\u00e9alisation d’Ouvrages en Gabion)<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>

    Used Products<\/h2>
    \"Terramesh\"<\/div>
    Terramesh<\/h6>La famille Terramesh\u00ae de Maccaferri comprend diff\u00e9rentes options de parement pour la construction de structures en remblais renforc\u00e9s<\/span>Voir\n \n <\/a>
    star<\/span><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

    Dans ce contexte, Spie Batignolles Val\u00e9rian a sollicit\u00e9 France Maccaferri afin de proposer une solution en mesure de conforter les zones \u00e9boul\u00e9es,<\/p>\n","protected":false},"featured_media":81398,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-110314","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":[113579],"applications":[103493,103493],"solutions":[103601],"sectors":[103460]},"yoast_head":"\nEBOULEMENTS RD437 CASTELNAU TURSAN - Maccaferri France<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez nos r\u00e9ussites : EBOULEMENTS RD437 CASTELNAU TURSAN. 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