Three-dimensional regions in tunnels

Gercek H.

In the stress and stability analysis of underground openings, cross-sectional plane-strain analyses are common; yet, in tunnels, there are some regions that must be analyzed three dimensionally. The typical examples of such regions are: the excavation face, portals, intersections with other underground openings, and regions with sudden geometrical changes. The paper involves some considerations regarding the stability and analysis of these three-dimensional regions. Significance of these regions and the problems encountered in such regions are discussed. Then, major considerations that should ...Daha fazlası