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

<div>Image of IV grade surrounding rock of a vertical hole (a) Hole No. 1. (b) Hole No. 2. (c) Hole No. 4. (d) Hole No. 9. (e) Hole No. 10. (f) Hole No. 11. (g) Hole No. 13. (h) Hole No. 16. (i) Hole No. 17.</div>

Advances in Civil Engineering

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Figure 9

Figure 9: Assessment of Fractures in Excavation Damaged Zone around Roadways of an Iron Mine Using Optical Televiewer Detecting Method 