El Metro de Riad es un enorme proyecto de sistema de transporte urbano que se está construyendo en Riad, Arabia Saudita. El proyecto contará con 85 estaciones, construidas a lo largo de 6 líneas de transporte, para una longitud ferroviaria total de 176 kilómetros. Se espera que el sistema atienda al menos a 1 millón de pasajeros diariamente en su inauguración en 2018.
For this large infrastructure project, Dextra Middle East has been involved on various stations and packages.
Trabajos de excavación
Before proceeding with general construction works, during early excavation phase, it is required to anchor retaining walls back into the stable ground in order to prevent any wall displacement. This will allow to keep excavating in a safe environment.
For that purpose, Dextra supplied steel ground anchors installed through retaining wall. Each system is based on a high-tensile fully threaded bar, coming with nut and plate, and grouted to provide bonding with the soil.
Conexiones de balsa y verticales
Acopladores de barras de refuerzo Bartec were supplied for the works in the stations. Couplers were used for slabs, column and wall connections. A typicall application on this project is to cast rebar couplers in the concrete with reinforcement, and then proceed with second phase bar connection at a later stage.
Unitec bolted couplers can have also been use on various parts of the project. Typically Unitec is used when overlap is planned but lapping length appear to be too short to perform a safe splice. In that case Unitec provides a convenient and full performance connection.