Rock Bolting Contractors

Rock bolts are installed by drilling initial holes into the roof or walls of a rock formation. Steel rods are then inserted into these holes to provide support to the roof or rock walls. The installation begins with the rock bolter drilling holes into the rock followed by the preparation of the anchor head. The rock bolt is then threaded inside the anchor head until it engages with the bottom bail. The anchor is then inserted into the pre-drilled holes.

A nut is threaded on the rock bolt to protect it from damage, as the bolt is hammered about 1 inch below the surface of the rock. The bolt is then hand-tightened for initial anchor engagement on sidewalls of the hole. Once tightened, the nut is removed, and a reaction plate is placed over the rock bolt. Finally, washers and nuts are attached to secure the position of the thread.

There are different types of rock bolts that vary in sizes. The length of the rock bolts as well as their arrangement are also varied depending on the reinforcement requirements.