The Effect of Intersection Angle on the Failure Mechanism of Utility Tunnel

Figure 11

Vertical stress with different intersection angle. (a) The vertical stress of surveying line 5. (b) The vertical stress of surveying line 6. (c) The vertical stress of surveying line 7. (d) The vertical stress of surveying line 8.

(a)

(b)

(c)

(d)