2. The anchor and cable joists are welded with steel bars, which are light in weight, low in cost, convenient in transportation, and low in labor intensity for workers;
3. The anchor and cable joists are welded with steel bars and have good flexibility. After being stressed, they can be in full contact with the full section of the roadway instead of point contact. The stress condition is better, and the bearing capacity can be fully exerted. The anchoring force of the Friction Rock Bolt is evenly transmitted to the entire roadway section;

The adopted structure of the anchor cable joist can increase the bearing load. The anchor cable joist is provided with spacer holes, and the tray at the outer end of the anchor rod is pressed to form the spacer hole on the anchor cable joist. The stress on the Friction Rock Bolt body and the pressure-bearing rod is transferred to the anchor net. The stress directions of the anchor rods, anchor joists and pallets at different eye positions are the same.