Análise comparativa de contenções em solo grampeado com face em concreto projetado e com vegetação

Abstract

Slope instability is a frequent geotechnical issue, aggravated by natural and human factors, causing serious socioeconomic and environmental consequences. Among stabilization techniques, soil nailing stands out for its effectiveness and adaptability. However, the effectiveness and longevity of the containment depend largely on the face covering used. This study offers a comparative analysis between two widely used solutions: vegetative revetment and shotcrete revetment. The methodology was based on a review of the literature and analysis of case study documents, taking into account technical, environmental, economic, and operational criteria. The results suggest that shotcrete provides superior immediate mechanical strength, more uniform execution, and reduced maintenance requirements. On the other hand, vegetative revetment stands out for its lower environmental impact, better landscape integration, and contribution to surface drainage, despite requiring more intensive initial maintenance. The choice between solutions should be based on the geotechnical context, climatic conditions, available budget, and sustainability goals of the project.