Monitorização contínua da rigidez das camadas granulares por meio de bender elements
DOI:
https://doi.org/10.14195/2184-8394_167_6Palavras-chave:
Sensor Bender Element, monitorização geotécnica, rigidez dinâmicaResumo
Apesar da importância estrutural das camadas granulares não ligadas dos pavimentos flexíveis, a sua monitorização contínua enfrenta limitações técnicas significativas. Este estudo desenvolveu um sistema avançado de monitorização, baseado em sensores do tipo Bender Elements, para medir a rigidez dinâmica das camadas granulares. Foi concebido um sistema de proteção e acoplamento destinado a proteger os sensores contra tensões externas e a garantir um contacto adequado para a propagação da onda de corte no geomaterial. Um estudo numérico analisou a influência da geometria da cápsula, e foi integrado um sistema de amplificação personalizada para alcançar maiores distâncias. O sistema foi validado experimentalmente em laboratório e posteriormente implementado no terreno, onde se mantém em funcionamento.
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Direitos de Autor (c) 2026 Carolina Briceño, Manuel Parente, Mohammad Roshan, Miguel Azenha, António Gomes Correia, João Rocha, Marcos Martins, Joyce Chidassicua, Ionut Moldovan, Helder Silva, José Neves, Erol Tutumluer
Este trabalho encontra-se publicado com a Licença Internacional Creative Commons Atribuição 4.0.
