Figure 3
From: An new elastic–plastic analytical solution of circular tunnel under non-axisymmetric conditions
Distribution characteristics of the plastic zone, (a) \(\lambda =0.5\), (b) \(\lambda =1.0\) and (c) \(\lambda =1.5\) when \({P}_{n}=0.0 MPa\); (d)\( \lambda =0.5\), (e)\( \lambda =1.0\) and (f) \(\lambda =1.5\) when \({P}_{n}=0.1 \mathrm{MPa}\).
