Hollow anchor rod accessories play a key role in engineering.

Hollow anchor bolt accessories are slender rods that penetrate deep into the rock and soil to control deformation. They can include components such as washers and nuts. Featuring a hollow design, the rod's inner hole serves as a high-pressure water and air drilling passage and grouting channel. Compared to solid rods, the hollow rod design offers enhanced stiffness and shear strength. They are primarily used for systematic support in geological conditions with moderate to good surrounding rock.
Anchor rods, as tensile components deeply embedded in the ground, enhance the bonding and friction between the anchor solid and soil layers, increasing the bearing capacity of the anchor solid and transferring the tensile force of the free segment to the deep soil. Due to the functions of each component, the rod body maintains good centralization, and the mortar can completely encase the anchor rod, avoiding the risk of corrosion, and achieving the purpose of long-term support.
Hollow anchor rod accessories are suitable for medium geological conditions and good surrounding rock. Long-lasting support systems, as well as advanced support for roads, railways, tunnels, slope support, foundation pit support, and more, can achieve consolidation of fractured rock bodies through pressure grouting of hollow bolt bodies. After drilling holes to the designed bolt depth with a rock drill, the steel bolt head is attached to the bolt body, inserted into the hole, and the stopper, washer, and nut are installed. Then, reverse the bolt to expand the shell bolt head to grip the hole wall, followed by the grouting process.