The Rockbolt accessories manufacturer tells you to install the pipe joint anchor in a borehole smaller than the pipe diameter. At this time, three forces will be applied to the surrounding rock. One is to make the hole within the full length of the pipe joint anchor. One of the radial pressures of the wall is friction to prevent the surrounding rock from sliding down, and the other is the supporting force of the pipe joint anchor pallet support plate. The Rockbolt accessories manufacturer tells you that these three forces make the surrounding rock more stable.

skills requirement:
1. The Rockbolt accessories manufacturer tells you that the surface of the seam pipe anchor rod should be flat, without serious strain or rust. The weld should be free of cracks, no pores and slag, and it is not allowed to burn through the pipe wall. The tray should be able to move freely on the rod. It is advisable that the retaining ring interface and the opening of the pipe seam are misaligned by 170o-190o.
2. The manufacturer of Rockbolt accessories tells you that the pull-off force of the welding seam of the retaining ring is ≥80kN, the ultimate tensile strength of the rod body is ≥110kN, the initial anchoring force is ≥25kN/m, and the pallet bearing capacity is ≥65kN.
Technical performance:
1. Initial anchoring force: 3~7 tons;
2. Pipe ring pull-off load: 8~10 tons;
3. Tensile breaking capacity of anchor pipe: 12~13 tons;
4. The Rockbolt accessories manufacturer tells you that the corrosion resistance is 20~30% higher than that of A3 steel, which is good for long-term use.
Instructions:
1. Determine the anchor rod hole position according to the design requirements, and drill the hole with a drilling machine.
2. Use compressed air to blow away the rock dust in the hole.
3. The manufacturer of Rockbolt accessories tells you to install the anchor plate on the rod body, and use the impact drill to drive the anchor rod into the hole.