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

<div>Equipment arrangement. (a) Test equipment. (b) Schematic diagram of equipment arrangement. (c) OPTV probe.</div>

Advances in Civil Engineering

Figure 7: Assessment of Fractures in Excavation Damaged Zone around Roadways of an Iron Mine Using Optical Televiewer Detecting Method 