What is rock bolting?
A common technique used in geotechnical engineering and construction to stabilize rock and soil formations. It involves the installation of steel bolts, also known as rock bolts, into the rock or soil to provide support and reinforcement.
The process starts with drilling holes into the rock or soil. These holes are typically drilled at a specific angle and depth, depending on the geological conditions and the desired level of stabilization. The holes are then cleaned to remove any loose debris and dust.
Once the holes are prepared, steel bolts, usually made of high-strength steel, are inserted into the holes. These bolts are typically threaded or ribbed to improve their bonding with the surrounding rock or soil. They are often coated with epoxy or cement grout to enhance their performance and increase their durability.
The rock bolts are then tensioned using specialized equipment to create a pre-stress force in the rock or soil. This pre-stress force helps to counteract the potential movement or instability of the rock or soil mass. It also enhances the overall stability and load-bearing capacity of the structure or slope being reinforced.