{"id":9657,"date":"2019-12-12T10:35:35","date_gmt":"2019-12-12T10:35:35","guid":{"rendered":"https:\/\/www.tierraarmada.com\/proyecto-de-barranco-de-transmision\/"},"modified":"2023-11-30T13:38:46","modified_gmt":"2023-11-30T13:38:46","slug":"proyecto-de-barranco-de-transmision","status":"publish","type":"post","link":"https:\/\/www.tierraarmada.com\/proyecto-de-barranco-de-transmision\/","title":{"rendered":"Proyecto de barranco de transmisi\u00f3n"},"content":{"rendered":"
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Arcos TechSpan y muros de tierra armada para un proyecto de carretera en Nueva Zelanda<\/h2>\n

Cuando est\u00e9 terminado, en mayo de 2020, el Proyecto Transmission Gully (TGP) proporcionar\u00e1 una nueva autopista de 27 km de longitud y cuatro carriles al norte de Wellington (Nueva Zelanda). Esta moderna y segura autopista principal evitar\u00e1 las comunidades costeras y los puntos de estrangulamiento de espacio limitado que provocaban una congesti\u00f3n del tr\u00e1fico cada vez mayor en la actual autopista SH1.<\/p>\n

El proyecto es muy complejo, ya que en algunos lugares el trazado atraviesa terrenos escarpados y dif\u00edciles y en otros cruza llanuras aluviales con suelos profundos y blandos para los cimientos. En gran parte de su longitud, la alineaci\u00f3n est\u00e1 cerca de la falla activa de Ohariu. Se necesitan 25 puentes nuevos y grandes alcantarillas a lo largo del trazado. Muchos de los puentes son de un solo vano, con luces que oscilan entre 22 y 38 m.<\/p>\n

La Wellington Gateway Partnership (WGP) y el Gobierno de Nueva Zelanda formaron una Asociaci\u00f3n P\u00fablico-Privada (APP) para ejecutar el proyecto. El WGP subcontrat\u00f3 el dise\u00f1o y la construcci\u00f3n del proyecto a una empresa conjunta entre CPB Contractors Pty Ltd y HEB Construction Ltd (filial de VINCI), conocida como CPB HEB JV. CPB HEB JV contrat\u00f3 a Reinforced Earth Ltd Nueva Zelanda para el dise\u00f1o y suministro de materiales para 10 estribos de puente. Tierra Reforzada consider\u00f3 en el dise\u00f1o la proximidad a la activa Falla de Ohariu con una magnitud efectiva de 7.<\/p>\n

Tras la firma del contrato, Reinforced Earth Ltd recibi\u00f3 la adjudicaci\u00f3n de otras dos estructuras: estribos para otro puente de un solo vano y un sistema de arco de hormig\u00f3n TechSpan\u00ae con extensos muros RE asociados. Los estribos de los once puentes de un solo vano requirieron un total de unos 8.500 metros cuadrados de paneles de revestimiento de hormig\u00f3n prefabricado TerraClass\u00ae, con una altura de los muros que oscilaba entre 1,6 m y 10,7 m. El arco TechSpan\u00ae tiene una luz nominal de 14 m y una altura de 6,8 m. Los muros de p\u00f3rtico Associated Reinforced Earth\u00ae comprend\u00edan 2.100 metros cuadrados de paneles de revestimiento de hormig\u00f3n prefabricado TerraPlus\u00ae hasta una altura m\u00e1xima de 16,8 m. La construcci\u00f3n del primer conjunto de pilares de Reinforced Earth\u00ae comenz\u00f3 en julio de 2017, y todas las estructuras de Reinforced Earth\u00ae estar\u00e1n sustancialmente terminadas en octubre de 2019.<\/p>\n<\/div>

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