Rhäzüns - Rothenbrunnen, km 32.172, Erneuerung Stützmauer 15-241

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The retaining structure will be equipped with a 156 m long half-ballast trough in reinforced concrete construction. The structural measures can be divided into two sections. - Half-ballast trough km 32'160 - 32'210, area with projecting half-ballast trough - Half-ballast trough km 32'210 - 32'315, area without projecting half-ballast trough Half-ballast trough km 32'160 - 32'210: The relatively large track deviation means that the new reinforced-concrete half-ballast trough must be designed as a type of cantilever bridge. The 4 necessary support piers will be founded on individual small shafts. Half-ballast trough km 32'210 - 32'315: Equipment of the retaining structure with a new half-ballast trough. The reinforced-concrete structures will be constructed over both sections using the standard construction method for a ballast trough, in which auxiliary bridge types Lumpegna are used. Main quantities: - Relocation and installation of auxiliary bridges 23 pcs - Facade scaffolding 560 m2 - Repair of natural stone masonry 360 m2 - Demolition of rubble-stone masonry and concrete 140 m3 - Excavation 515 m3 - Formwork 750 m2 - Reinforcement 72 t - In-situ concrete 480 m3 -…

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