Friction bolt is a new type of bolt with full-length anchoring and active reinforcement of surrounding rock. Its three-dimensional part is a high-strength steel pipe with longitudinal slits, which is installed in a hole slightly smaller than the pipe diameter. It can immediately apply radial pressure to the hole wall and friction force to prevent the surrounding rock from sliding down.

Friction bolt is a new type of bolt with full-length anchoring and active reinforcement of surrounding rock. Its three-dimensional part is a high-strength steel pipe with longitudinal slits. When installed in a drill hole slightly smaller than the pipe diameter, it can imme

diately exert radial pressure on the hole wall and friction force to prevent the surrounding rock from sliding down within the full-length range, plus the bearing force of the anchor pallet, so that the surrounding rock is in a three-dimensional stress state and the rock stratum is stabilized.

When the surrounding rock is moved by blasting vibration, the anchoring force increases obviously in the later stage. When the surrounding rock is displaced significantly, the anchor does not lose its supporting resistance, which has better characteristics than the expanded shell anchor.

Technical characteristics of Split Set Stabilisers:

1. High-strength alloy strip steel is used as raw material;

2. The installation is the simplest;

3. No anchoring agent is needed;

4. The friction between anchor and rock mass is large;

5. It has high shear and tensile strength;

6. Equipped with a high-strength tray, the tray is evenly stressed;

7, roadway height is greater than the anchor length.

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