Experimental Study on the Failure Mechanism of Tunnel Surrounding Rock under Different Groundwater Seepage Paths

Figure 8

Variation of wall rock stress and pore water pressure in different conditions of seepage path.

(a)  cm, T9 and T10

(b)  cm, T9 and T10

(c)  cm, T9 and T10

(d)  cm, T1 and T2

(e)  cm, T1 and T2

(f)  cm, T1 and T2

(g)  cm, T5 and T6

(h)  cm, T5 and T6

(i)  cm, T5 and T6