Assessment of Fractures in Excavation Damaged Zone around Roadways of an Iron Mine Using Optical Televiewer Detecting Method

Figure 10

Image of II and III grade surrounding rock of vertical hole. (a) Hole No. 3. (b) Hole No. 5. (c) Hole No. 6. (d) Hole No. 7. (e) Hole No. 8. (f) Hole No. 12. (g) Hole No. 14. (h) Hole No. 15.