Tunnels analysis considering time-dependent behaviour in the ground-support interaction / Análise tridimensional de túneis considerando o comportamento dependente do tempo na interação maciço-suporte

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

Shotcrete has been more and more used worldwide for tunnel support. This kind of material has the characteristics of starting to act structurally since early ages. Nevertheless, the current processes of support design neglect the development of its properties after some time in connection to the 3D effects of the region where the face of the tunnel is located. The present work relates the procedures adopted in analyzing the influence of some ground-support interaction parameters on the support structure internal forces of a tunnel, not only when shotcrete is used, with its time-dependent properties, but for materials with constant properties as well. Dimensionless solutions are developed for the support thrust and bending moments quantification problem. Most of the numerical simulations performed to reach this purpose were carried out by means of parallel processing techniques.

ASSUNTO(S)

parallel processing time-dependent properties processamento paralelo three-dimensional analysis numerical model dependência do tempo shotcrete suporte túnel support análise tridimensional concreto projetado tunnel modelo numérico

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