Study on the Influence of Tectonic Stress on Stability of Horseshoe-Shaped Tunnels

Figure 3

Simulation of the effect of tectonic stress on the tunnel. (a) Distribution of vertical stress ( = 20 MPa). (b) Distribution of vertical stress ( = 40 MPa). (c) Distribution of horizontal stress ( = 10 MPa). (d) Distribution of horizontal stress ( = 20 MPa). (e) Distribution of horizontal strain ( = 20 MPa). (f) Distribution of horizontal strain ( = 40 MPa). (g) Distribution of vertical strain ( = 10 MPa). (h) Distribution of vertical strain ( = 20 MPa).

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