Análise de alternativas para contenção de subsolos

Abstract

The great need for exploring the subsoil occupation in urban areas due to population increase, associated to the evolution of peripheral retaining techniques that can be used in construction of buildings, makes the present topic of fundamental importance for the development of critical sense, not only by Geotechnical engineers, but also those who intend to be managers of constructions in urban areas. In this way, a brief study will be made of some preliminary information and experiments to correctly design and execute retaining structures, such as calculation of lateral earth pressure, mapping of neighbourhood structures and soil exploration. After this information is briefly presented, some auxiliary containment structures such as stanchion, slopes and tie rods and detailed six retaining structures: three techniques of Bored Pile Walls, Sheet Pile Walls, Berliner Walls and Diaphragm Walls, which described the necessary equipment, executive methodology, advantages, disadvantages and fields of application for each of the techniques. A case study was carried out of the BS Design project of the BSPAR Construction Company that used the diaphragm wall as a retaining structure, which is a technique rarely used in the city of Fortaleza, reporting the particularities of design and execution. Finally, it is intended with this work that engineers who intend to work in civil constructions may have a knowledge about the types of structures most used in peripheral retaining in Brazil and form a critical knowledge about each one and the situations that it can be used in the constructions they will manage in the future.