Rock bolting serves what function?

Rock bolting serves what function?

• A. It transfers load from the unstable exterior to the confined (and much stronger) interior of the rock mass.
• B. It increases moisture content of rock mass.
• C. It decreases rock stiffness.
• D. It creates additional fissures.

Answer: (C)

Rock bolts stabilize a rock mass by tying blocks together and anchoring them to a stronger interior. This creates a confined, cohesive system where stresses that would cause movement on weak surfaces are redistributed into the surrounding, more competent rock. The result is greater stiffness and strength of the mass, which reduces deformation and the risk of rock falls or collapse. In short, the bolts help transfer load from the unstable exterior to the stronger interior, enhancing overall stability. They do not purposefully change moisture content, decrease stiffness, or create new fissures.

Rock bolts stabilize a rock mass by tying blocks together and anchoring them to a stronger interior. This creates a confined, cohesive system where stresses that would cause movement on weak surfaces are redistributed into the surrounding, more competent rock. The result is greater stiffness and strength of the mass, which reduces deformation and the risk of rock falls or collapse. In short, the bolts help transfer load from the unstable exterior to the stronger interior, enhancing overall stability. They do not purposefully change moisture content, decrease stiffness, or create new fissures.