Do you know the structure of the anchor drill?

Now let's tell you the mechanical action principle of the anchor rod in the drilling rig, which can be summarized as follows:

Anchor suspension function: the anchor passes through the soft and loose rock and soil, and the anchor can stabilize the formation to produce tension, overcome the self weight and sliding force of the sliding rock and soil, and prevent the sliding and collapse of the slope wall;

Compression reinforcement: the compression zones of adjacent bolts are overlapped to form compression zones. Enhance the integrity and improve the bearing capacity;

Composite beam (arch): after the anchor rod is inserted into a certain depth of the stratum, the strata under the action of the anchoring force squeeze each other, the interlayer friction increases, and the internal stress and deflection decrease, which is equivalent to changing a simple composite beam (arch) into a composite beam (arch). The flexural rigidity and strength of composite beam (arch) are improved, so as to enhance the bearing capacity of stratum.