Investigation and Analysis on Crystallization of Tunnel Drainage Pipes in Chongqing

Figure 1

Situations of drainage pipe exits. (a) Site 1. (b) Site 2. (c) Site 3. (d) Site 4. (e) Site 5. (f) Site 6. (g) Site 7. (h) Site 8.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)