Name: Rock Bolt, Secure Fastening, Durable Performance
Brand: Jinnox Bolt
Availability: InStock
Rating: 5 (10 reviews)

Question 1

What is the primary purpose of a rock bolt in underground mining and tunneling?

Accepted Answer

The primary purpose of a rock bolt is to provide support and stabilization to rock masses by reinforcing and holding fractured or weak rock together. It helps prevent rockfalls and ensures the structural integrity of tunnels, mines, and slopes.

Question 2

What are the different types of rock bolts commonly used in geotechnical engineering?

Accepted Answer

The most common types of rock bolts include:
Mechanical Anchored Rock Bolts: Use expansion shells to create anchorage.
Resin-Grouted Rock Bolts: Bonded with resin for strong, permanent support.
Cement-Grouted Rock Bolts: Embedded in cement grout for long-term stabilization.
Friction Rock Bolts (Split Set): Relies on friction between the bolt and rock to provide support.

Question 3

How is a rock bolt installed in a tunnel or underground excavation?

Accepted Answer

The installation process involves:
Drilling a hole into the rock surface.
Inserting the rock bolt along with anchoring material (resin, grout, or mechanical expansion shell).
Securing the bolt by tightening it or allowing the grout to set.
Attaching a faceplate or washer to distribute the load evenly.