Stresses in the Soil Surrounding a Traffic Tunnel
Problems of material failure in soil mechanics and other frictional materials such as concrete are often modeled using the well-known Mohr-Coulomb law. This is an elastic perfectly-plastic material model.A smooth approximation of the Mohr-Coulomb yield surface for a three-dimensional case is the Drucker-Prager model. This model demonstrates the employment of elastoplastic analysis in soil mechanics using the Drucker-Prager material model. The development of the stress levels, plastic regions and deformations are studied in the soil surrounding a traffic tunnel.
The model is inspired from a model by I. Doltsinis., Elements of Plasticity, WIT Press, 2000.
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The equivalent deviatoric stresses and deformations at the final stage when the surface pressure is removed. |
Engineering Fields
- Nonlinear Analysis
Application Areas
- Structural Mechanics