Estudo comparativo entre diferentes soluções de fundações para um empreendimento residencial na parte baixa da cidade de Maceió - AL

Abstract

This paper aims to carry out a comparative technical and economic study between different geotechnical solutions for a residential development located in the lower part of the city of Maceió – AL. For this, the solution adopted in this enterprise, which was a shallow foundation of the footing type, was compared with an alternative solution, dimensioned in deep foundation of the continuous propeller pile type. In terms of execution time, the two project alternatives presented similar times of approximately 2.5 months, estimated based on the experience of builders. Due to the execution process, the quantity and the large size of the deep foundations, the quantity of material and, consequently, the associated cost of the alternative solution was high, around 3.5 times more than the total budget cost for the adopted solution. Thus, since the estimated execution time of the foundations was similar, the solution adopted in a shallow footing type foundation showed better economic viability. Despite that, the process of choosing the best geotechnical solution does not depend only on the analysis of the quantitative of materials and costs of execution, but on several factors, among them the experience and familiarity of the builder with the chosen solution.