Dimensionamento de muro de arrimo em pedra argamassada com perfil escalonado: estudo de caso

Abstract

The growing occupation of spaces for urban use has intensified the need for structures of containment, among the many existing ones, such as pile curtains, gabion and structures in reinforced concrete. Gravity or weight retaining walls emerge as an alternative economical and easy to execute, suitable for horizontal projects and intermediate gaps. In this In this context, this work presents a practical case of a retaining wall by gravity, along with the theoretical basis for the design of the project, the studies of thrust of Coulomb and Rankine and stability checks for tipping, slipping, foundation load capacity and overall failure, within their safety factors for safe design of structures. The wall in question was executed in stone mortar and staggered profile, in the city of Maceió-AL, located on the edge of a valley, on the of an Atlantic Forest reserve and contains the landfill for the parking lot of 2 residences. Built on the soil of the Barreiras Formation, this wall has 12 sections with a height of up to 6.30 m. and is seated on 80 cm diameter stakes, sized to work together with the wall in the prevention of landslides of the massif and possible aggression to environmental reserve. Based on the experience of renowned designers in the region, this work uses the design study to present the relevant aspects in the design insurance of a mortar stone retaining structure.