How to use the split set?

2021-07-27 13:40:36

The use technology of the split set is simple, easy to use, high tray.

Split set is a new type of anchorage that actively reinforces the surrounding rock. The three-dimensional part is a high-strength steel pipe with longitudinal slits. When installed in a borehole smaller than the pipe diameter, it is immediately applied to the hole wall over the entire length. Radial pressure, the friction that prevents the surrounding rock from falling, plus the supporting force of the anchoring tray, makes the surrounding rock in a three-way stress state. In the case of blasting vibration of surrounding rock anchors, the later anchoring force is significantly increased. When the surrounding rock is significantly displaced, the anchoring will not lose the supporting force, and it has better characteristics than shell anchoring.

Working principle:

The split set is installed in a borehole smaller than the pipe diameter. At this time, three kinds of forces are applied to the surrounding rock, one is to apply radial pressure to the hole wall within the full length of the pipe joint anchor rod, the other is friction to prevent the surrounding rock from sliding down, and the other is the pipe The load-bearing capacity of the seam anchor pallet pallet. These three forces make the surrounding rock stronger.

Product advantages

Advantage 1: Simple installation.

Advantage 2: High friction between bolt and rock mass; high shear strength;

Product parameter

Initial anchoring force: 3~7 tons;

Pipe ring pull-off load: 8~10 tons;

Tensile fracture resistance of anchor pipe: 12~13 tons

The corrosion resistance is 20~30% higher than that of A3 steel.

The composition and function of anchor bolt
What are the pre-tightening forces of split set?

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