Experimental Investigation of Ground and Air Temperature Fields of a Cold-Region Road Tunnel in NW China

Figure 10

The radial temperature distribution of surrounding rock in February and July. (a) Section K30 + 668. (b) Section K31 + 536. (c) Section K33 + 218. (d) Section K33 + 970.

(a)

(b)

(c)

(d)