Experimental and Analytical Study on Mechanical Properties of High Rock Temperature Diversion Tunnel

Figure 9

Stress curves for different heat source temperatures. (a) Circumferential stress: 90°C. (b) Radial stress: 90°C. (c) Circumferential stress: 60°C. (d) Radial stress: 60°C.

(a)

(b)

(c)

(d)