Anchors and rock bolts, which are commonly assigned the general term ”rock bolts”, are used for rock reinforcement in Mining and Tunneling. Rock bolts limit the loosening of blocks out of the rock mass and shear displacements. Furthermore, the frictional force between individual rock layers is increased. Anchors with a variable anchor length enable previous tension and thus an active force transmission. The maximum load-bearing capacity of these mechanical rock bolt is mainly determined by the stability of the borehole, the amount of the previous tension, and the design of the expansion shell. Generally, this does not apply to resin rock bolts, which can be actively retensioned using resin cartridges with different curing times. Which type of rock bolting system is most suitable for use depends on various factors such as the type of formation, the surrounding environment, the presence or absence of groundwater, the project budget, etc., which must be considered in each case. Sinorock® is a professional manufacturer of self-drilling anchor rods. It is committed to providing customers with system solutions and specialists in geotechnical anchorage systems.
