Structural and geotechnical design considerations and construction of Paseo del Bajo corridor in Buenos Aires
Paseo del Bajo is an urban artery, in Buenos Aires City’s Old Town, Argentina. Its main corridor is limited to heavy duty vehicles (even carrying dangerous goods). The main structural systems adopted for it are: elevated viaduct system on both connection headers with existing highways; and trench system in the buried area of the trace (cut & cover). The project comprises a trench of 25.00 meters (82.02 ft) width and an average of 9.0 meters (29.53 ft) depth with a cut & cover structural system. It is materialized with diaphragm walls buried up to 16.00 meters (52.49 ft) deep. A special section will be mentioned for the structural solutions adopted to resolve the public utilities crossing on both sides of the trace. Safety conditions are also detailed during the construction period on such a huge development, with tight construction schedule, along with some design parameters. Workload hypotheses are described, among which one of the highlights is for sure the water pressure due to water in soil pressure. It is stand out that the soil is composed by ground layers on gained lands of the Río de la Plata River apply to the structure.