Corrosion Behavior and Failure Mechanism of Prestressed Rock Bolts (Cables) in the Underground Coal Mine

Figure 7

Macrofracture corrosion morphology of the anchor cable: (a) the steel strand near the anchorage; (b) the steel strand near the anchorage, about 900 mm away from the anchorage; (c) fracture position.

(a)

(b)

(c)