Rebaixamento do lençol freático em construções subterrâneas: estudo de caso na obra de expansão da linha 2, verde do metrô da cidade de São Paulo

Abstract

The subway in the city of São Paulo – SP is an extremely important public transport in the daily lives of the population, with this in mind, several expansion works are carried out in the capital of São Paulo. To make these works possible, it is necessary to carry out an extensive study on lowering of the water table and its application in underground constructions. This work brings together several authors and explains the differences between each drawdown groundwater system through extensive research and study of articles. With the study carried out, it is possible to understand the full importance of the topic in the area of civil construction, whether to understand the advantages and disadvantages of each system, its applications, the environmental impacts caused, the safety of employees involved in a project in this segment, and even the relevance of the subject in society for future studies. Through extensive research, it was possible to note that this is a topic that still needs more niche studies, whether for a specific work or a region of interest. That said, it is a very important subject that is present in the lives of millions of people, such as those who need to travel via public transport. Furthermore, a case study was carried out that shows in practice how the process of lowering the water table works in an underground construction.