Stress Distribution and Mechanical Behaviour of Rock Mass Containing Two Openings Underground: Analytical and Numerical Studies

Figure 3

Hoop stress around Hole 1 in different cases: (a) ; (b) ; (c) ; (d) ; (e) ; (f) ; (g) .

(a)

(b)

(c)

(d)

(e)

(f)

(g)