ANÁLISE TÉCNICA E DE CUSTO ENTRE CONTENÇÃO EM SOLO GRAMPEADO E ESTACA JUSTA POSTA – ESTUDO DE CASO DE EXECUÇÃO DE UM PAVIMENTO GARAGEM

Abstract

This paper presents a comparative analysis of the containment techniques known as soil nail and stake stake. This study intends to show the singularities of each technique and its constructive methods, demonstrating its differences in execution and cost. This work was carried out using the case study of a vertical containment for garage pavement of the Sebastião Nobre building, located in Alfenas / MG. It presents the two contentions and their technical scope, behavior against their use, methodologies of calculation, sphere of action, as well as a brief history of each of them. The proposed technique (soil nail) shows that its through its interactions with the soil it is possible to dimension the structure, and the analysis of its behavior during and after its excavation processes, staple behavior and face deformation, information that Allow the design of the structure. The study starts with the recognition of soil parameters through the SPT test, which shows us the existing soil layer. With this information collected, the soil was subjected to stability analysis through the computer program GEOSTUIDO 2007, which performed the necessary diagnoses, which made possible the dimensioning of the containment. With the structural project completed, the budget stage begins, which in this work we use from several sources of research to demonstrate a more reliable cost. The two forms of contention were estimated and demonstrated in the form of tables, after which a cost comparison was made, which demonstrated the feasibility of the proposed containment technique.