What is a hollow anchor rod

Anchor rod refers to a slender rod that penetrates deep into the interior of rock and soil and controls its deformation. It can include components such as pads and nuts. As a tensile component that penetrates into the ground, the anchor rod is connected to the engineering structure at one end and penetrates into the ground at the other end. The entire anchor rod is divided into a free section and an anchoring section. The free section refers to the transmission of tension at the anchor head to the anchor solid area, and its function is to apply pre-stress to the anchor rod; The anchoring section refers to the area where the cement slurry binds the prestressed steel bars to the soil layer. Its function is to increase the bonding friction between the anchor solid and the soil layer, increase the bearing capacity of the anchor solid, and transmit the tensile force of the free section to the depth of the soil.