The difference between anchor rod(rock bolt) and anchor cable

The anchor rod(Rock Bolt) and the anchor cable are only the difference in quantity, not the difference in quality, but the tensioning medium is different. The tension member of the anchor cable is made of steel strands, and the anchor rod(rock bolt) is made of high-strength precision-rolled rebar as the main steel. Usually, the anchor cable is used in large-tonnage anchoring projects.

The tension bars of the anchor cables are made of steel strands, and the anchor rods(rock bolts) are made of steel bars or steel pipes. Usually, the anchor cable is subjected to a large amount of force, and prestressing is required. The force is divided into an anchored section and a free section, which can be used as a permanent anchoring project. Anchor cables are a type of anchor rods(rock bolts), as are soil nails.

In China, under normal circumstances, the anchor cable needs to be prestressed, so it is actively stressed, and it is mostly used in engineering parts that have been deformed or have strict requirements on deformation. The bolt is generally not prestressed (sometimes a small prestress is applied), so it is passively stressed, and it only acts as an anchoring force when the anchored rock and soil mass is deformed to a certain extent. In addition, the length of the anchor cable is generally 20-50 meters, and the anchor rod(rock bolt) is less than 20 meters. Internationally, the anchor cable is only one type of anchor rod(rock bolt).

The prestressed anchor cable frame beam support structure adopts the prestress applied to the prestressed anchor cable to closely connect the sliding rock and soil mass with the stable rock mass, so as to increase the anti-sliding force of each layer of the rock and soil mass, and at the same time pass the slope The frame beam on the surface effectively connects each anchor cable into a whole, forming a reinforcement system from the outside to the inside, and then achieves the purpose of preventing the instability of the overall slope, which is a new type of anti-slip structure.

Advantages of prestressed anchor cable frame beam support system:

(1) Prestressed anchor cable frame is an effective measure for high slope disease prevention and slope protection

(2) It can effectively control the deep damage of slope diseases

(3) Beautiful appearance, easy to green

(4) Simple and easy construction, low technical risk

(5) Dynamic design of slopes can be carried out