{"id":9640,"date":"2023-06-23T15:20:06","date_gmt":"2023-06-23T13:20:06","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/pt\/success-stories\/en218-km-86300-a-88400\/"},"modified":"2024-11-13T14:59:31","modified_gmt":"2024-11-13T13:59:31","slug":"en218-km-86300-a-88400","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/pt\/success-stories\/en218-km-86300-a-88400\/","title":{"rendered":"EN218, KM 86+300 A 88+400"},"content":{"rendered":"
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Problem<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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A zona em quest\u00e3o localiza-se na Estrada Nacional 218, distrito Bragan\u00e7a, concelho de Miranda do Douro, junto \u00e0 barragem de Miranda, tro\u00e7o que faz a liga\u00e7\u00e3o de Miranda do Douro \u00e0 fronteira internacional com Espanha. Situando-se no vale encaixado do rio Douro com vertentes abruptas. Desde 2009 t\u00eam-se registado v\u00e1rios epis\u00f3dios de derrocadas sendo a de dezembro de 2014 que fez \u201csoar os alarmes\u201d para o perigo que os automobilistas corriam, n\u00e3o s\u00f3 quando se dirigiam para a fronteira como para os cruzeiros tur\u00edsticos no Douro. <\/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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Projeto contempla duas solu\u00e7\u00f5es para o problema devido \u00e0 pr\u00f3ximidade da estrada e o tamanho dos blocos potencialmente inest\u00e1veis variar ao longo da superf\u00edcie a proteger. Consequentemente, determinou-se que era necess\u00e1rio estabilizar a encosta com recurso a malha de Dupla Tor\u00e7\u00e3o 8×10 – 16 (arame de 2,7mm) refor\u00e7ada com uma malha de pregagens e cabos verticais, horizontais e diagonais e geomalha MacMat em alguns casos para evitar a eros\u00e3o. Devido \u00e0 dimens\u00e3o dos blocos numa determinada zona, foi mesmo necess\u00e1rio instalar uma barreira din\u00e2mica com capacidade de absor\u00e7\u00e3o de energia at\u00e9 5000kJ. Concretamente instalaram-se: – 27.000 m2 Malha de Dupla Tor\u00e7\u00e3o 8×10 – 16 galvanizada 4R (ZN90%-AL10%) e marcado CE de acordo com ETA-16\/0758, refor\u00e7ada com malha de pregagens \u00d8 25mm e \u00d8 32mm e cabos de \u00d816mm e em alguns locais complementada com 7.000m2 de geomalha MacMat 19.1, formada por uma matriz tridimensional de pol\u00edmeros com uma massa por unidade de \u00e1rea de 550 g\/m2 de acordo com a EN ISO 9864. Os tratamentos foram adaptados \u00e0s caracter\u00edsticas de cada talude, nuns casos a malha Dupla tor\u00e7\u00e3o foi colocada em cortina com pregagens de \u00d825mm, cabos no topo e na base, e com ou sem geomalha. Noutros a malha de Dupla tor\u00e7\u00e3o complementada com pregagens de \u00d825mm ou \u00d832mm, com espa\u00e7amentos vari\u00e1veis de 2,0Hx2,0V e de 2,5Hx2,5V, foi refor\u00e7ada com cabos horizontais, verticais e diagonal, empregou-se ainda geomalha nos locais onde foi necess\u00e1rio. – Barreira Din\u00e2mica RMC 500A PLUS, com 7,0 metros de altura e 70 metros de comprimento, capacidade de absor\u00e7\u00e3o at\u00e9 5000 kJ, Categoria A de acordo com a marca\u00e7\u00e3o ETAG 027 e CE de acordo com a ETA-11\/0293. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>","protected":false},"excerpt":{"rendered":"

Projeto contempla duas solu\u00e7\u00f5es para o problema devido \u00e0 pr\u00f3ximidade da estrada e o tamanho dos blocos potencialmente inest\u00e1veis variar ao longo <\/p>\n","protected":false},"featured_media":7765,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-9640","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nEN218, KM 86+300 A 88+400 - Maccaferri Portugal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/maccaferri-stage.softecspa.it\/pt\/success-stories\/en218-km-86300-a-88400\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EN218, KM 86+300 A 88+400\" \/>\n<meta property=\"og:description\" content=\"Projeto contempla duas solu\u00e7\u00f5es para o problema devido \u00e0 pr\u00f3ximidade da estrada e o tamanho dos blocos potencialmente inest\u00e1veis variar ao longo\" \/>\n<meta property=\"og:url\" content=\"https:\/\/maccaferri-stage.softecspa.it\/pt\/success-stories\/en218-km-86300-a-88400\/\" \/>\n<meta property=\"og:site_name\" content=\"Maccaferri Portugal\" \/>\n<meta property=\"article:modified_time\" content=\"2024-11-13T13:59:31+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/maccaferri-stage.softecspa.it\/pt\/success-stories\/en218-km-86300-a-88400\/\",\"url\":\"https:\/\/maccaferri-stage.softecspa.it\/pt\/success-stories\/en218-km-86300-a-88400\/\",\"name\":\"EN218, KM 86+300 A 88+400 - 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