The process of rock bolting consists of anchoring the bolt in a hole; applying tension to the bolt to place the rock under compression parallel to the bolt; and placing the bolts in such a pattern that they will properly support the rock structure. Rock may be supported by bolts in five ways:
- beam building;
- reinforcement of arched opening requiring support;
- reinforcement of an opening otherwise self-supporting; and
- reinforcement of walls against shear and compressive action.