Prediction of the Required Supporting Pressure for a Shallow Tunnel in Layered Rock Strata Based on 2D and 3D Upper Bound Limit Analysis

<div>Comparison of the required supporting pressure in 2D and 3D mechanisms.</div>

Advances in Civil Engineering

Figure 4: Prediction of the Required Supporting Pressure for a Shallow Tunnel in Layered Rock Strata Based on 2D and 3D Upper Bound Limit Analysis 