Twist Rock Bolt For Mining

The anchoring section refers to the area where the cement slurry binds the prestressed reinforcement to the soil layer. Its function is to increase the bonding friction between the anchor body and the soil layer, increase the pressure bearing effect of the anchor body, and transmit the tension of the free section to the depth of the soil. Fried Dough Twists bolt construction, bolt is the bar system structure of rock and soil reinforcement. By utilizing the longitudinal tensile force of the anchor rod body, the disadvantage of much lower tensile strength than compressive strength of rock and soil can be overcome. On the surface, it seems to limit the detachment of rock and soil from the source. Macroscopically, it increases the cohesion of the rock and soil mass. From a mechanical perspective, it mainly improves the cohesion and internal friction angle of the surrounding rock mass. In fact, the anchor rod is located within the rock and soil body, forming a new composite with the rock and soil. The anchor rod in this complex solves the problem of low tensile strength of the surrounding rock mass. This greatly enhances the bearing capacity of the rock and soil mass itself.