{"id":75028,"date":"2025-11-17T15:05:37","date_gmt":"2025-11-17T14:05:37","guid":{"rendered":"https:\/\/www.maccaferri.com\/pt\/success-stories\/en218-km-86300-a-88400\/"},"modified":"2026-02-17T15:24:51","modified_gmt":"2026-02-17T14:24:51","slug":"en218-km-86300-a-88400","status":"publish","type":"stories","link":"https:\/\/www.maccaferri.com\/pt\/success-stories\/en218-km-86300-a-88400\/","title":{"rendered":"EN218, KM 86+300 A 88+400"},"content":{"rendered":"
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    Estabiliza\u00e7\u00e3o com malha de Dupla Tor\u00e7\u00e3o 8×10-16 Galmac 4R, pregagens \u00a0e cabos<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Estabiliza\u00e7\u00e3o com malha de Dupla Tor\u00e7\u00e3o 8×10-16, cabos e geomalha Macmat 19.1<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Malha de Dupla Tor\u00e7\u00e3o 8×10-16 em cortina com geomalha Macmat 19.1<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Vista da Zona a proteger com Barreira Din\u00e2mica RMC 500A PLUS<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Barreira Din\u00e2mica RMC 500A PLUS, H=7m, L=70m.<\/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 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-75028","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=\"description\" content=\"Explore nossas hist\u00f3rias de sucesso: EN218, KM 86+300 A 88+400. 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