Estudo dos processos construtivos e das patologias de açudes e barragens geotécnicas de pequeno porte

Abstract

In many parts of Brazil, agriculture requires a great deal of water demand and the financial benefits derived from the cultivation of land are seldom sufficient to allow the construction of expensive and technologically advanced reinforced concrete structures, thus seeking to store water as large Tanks and concrete buses. Therefore, due to the ease of construction and cost, the alternative usually employed is the construction of dams or dams. The proper choice of the equipment used for the construction and compaction of the bus is of extreme importance for the execution and safety of the work, and often due to inexistence or unavailability or at cost, in rural properties it is not always possible to build the buses with equipment Such as sheepskin rollers and plain rollers. Thus, the objective of this work is to survey the construction processes of some buses located in the city of Alegrete / RS and region, as well as identify the pathologies present in them due to lack of maintenance or carelessness. For the accomplishment of this work, the buses were first defined that fit the minimum dimensions required and that the owner had knowledge of the construction process. Based on this, 8 buses were analyzed, followed by a survey of their construction processes, as well as inspections and field visits to identify the possible pathologies present in these buses. The study presented several anomalies, but the ones that stood out most were erosion in the upstream, wetlands in the downstream region and spillways with obstructions or some type of irregular construction. In addition to the pathological results, it was also observed that the tractor unit with scraper was the most used equipment in the construction processes of the buses in the city of Alegrete / RS and region. Thus, this work made it possible to record which anomalies were found in the buses studied and also the stage in which they are found, as well as the survey of the most used construction processes, making these studies become a memorial for future works.