308 Surface excavation instability mechanisms
I a = -45"
Figure 17.23 Model test data for loading on the surface of an artificial anisotropic
material (after Gaziev and Erlikhman, 1971).
jacob rumans
(Jacob Rumans)
#1
308 Surface excavation instability mechanisms
I a = -45"
Figure 17.23 Model test data for loading on the surface of an artificial anisotropic
material (after Gaziev and Erlikhman, 1971).