Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Face stability of shallow tunnels in granular soils
During the construction process of tunnels at shallow depth, instability of the excavation face can occur and damage adjacent structures. This 3-dimensional problem has been investigated by the two teams and some tests were run in common, in a cooperative research program. Using 3-D models, over 15 experiments were undertaken to investigate the relationships between support pressure, deformation, and overall stability of the tunnel face in sandy soils. Models and experiments are described and the paper deals with the influence of various parameters, such as the embedment ratio, the soil density and the tunnel diameter on the face stability. Information related to the collapse process, the shape of the failure zones and the behaviour prior to collapse, are given.
Face stability of shallow tunnels in granular soils
During the construction process of tunnels at shallow depth, instability of the excavation face can occur and damage adjacent structures. This 3-dimensional problem has been investigated by the two teams and some tests were run in common, in a cooperative research program. Using 3-D models, over 15 experiments were undertaken to investigate the relationships between support pressure, deformation, and overall stability of the tunnel face in sandy soils. Models and experiments are described and the paper deals with the influence of various parameters, such as the embedment ratio, the soil density and the tunnel diameter on the face stability. Information related to the collapse process, the shape of the failure zones and the behaviour prior to collapse, are given.
Face stability of shallow tunnels in granular soils
Stabilität der Stirnfläche beim Vortrieb von oberflächennahen Tunnels in körnigen Böden
Chambon, P. (Autor:in) / Corte, J.F. (Autor:in) / Garnier, J. (Autor:in) / König, D. (Autor:in)
1991
7 Seiten, 10 Bilder, 2 Tabellen, 7 Quellen
Aufsatz (Konferenz)
Englisch
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