Análise de estabilidade de talude na comunidade de Muribara em São Lourenço da Mata - PE: estudo de caso geotécnico

Abstract

Due to the disorderly growth of housing in hillside areas, it is necessary to increase containment works to avoid collapses. Landslides in these areas have become frequent, especially in times when the amount of precipitated water is greater, since this phenomenon alters the water table level, decreases the effective stresses, and alters the stress distributions in the soils. The objective of this study was to evaluate the degree of stability for the critical section of analysis and verify whether the values ​​comply with the Brazilian Standard 11.682/09. Tests were carried out using undisturbed and deformed samples and percussion sounding were used as methodology. From the results obtained in the tests, the modeling was carried out through the Software of the companies Geostudio and Maccaferri. The results obtained by the Bishop method and by the Morgenstern-Price method indicated a safety factor of 1,547 and 1,494, respectively. With the use of gabion containment, the safety factor increased significantly to 1,765, and with the use of clamps, the value of 1,771. Therefore, it is concluded that the use of containment means is of paramount importance to ensure safety in the case studied.