Dynel Example 4:

Present day state of stress

The example shows how we can study the present-day stress. The model (Fig. 1) has a density of 2000 kg.m^-3, a Young's modulus of 30 GPa and a Poisson's ratio of 0.25. The computed vertical stress component (s_zz) is shown on Figure 2a and Figure 2b, within the voulme and along the well respectivelly.

Figure 1: Model configuration showing the surface topography and the tunnel. The model has been tetrahedrized.

Figure 2: (a) Computed vertical stress component (s_zz). (b) Plot of s_zz along the vertical well. See how the stress is perturbed close of the tunnel.