Self Drilling Anchor Bolt Hollow Grouting Rock Bolts Micropile Tunnel Grouted Bolt Mining Equipment Underground Mining Support

Features of Hollow Grouting Anchor Bar:
The hollow anchor combines the functions of the anchor and the grouting pipe into one. It is a grouting pipe during grouting, and it becomes an anchor rod without pulling it out after grouting. Compared with traditional anchoring technology.
1. The hollow design allows the anchor to function as a grouting pipe, avoiding the loss of mortar caused by pulling out the grouting pipe in traditional construction techniques.
2. The grouting is full and pressure grouting can be realized, which improves the quality of the project.
3. Due to the role of various accessories, the centering of the rod body is very good, and the mortar can wrap the entire length of the anchor rod, avoiding the risk of corrosion and achieving the purpose of long-term support.
4. Easy to install. Backing plates and nuts can be easily installed without on-site processing of threads.
5. Combined with the supporting special grouting pump and grouting technology for anchor rods, it is currently the only anchor system in China that has completely solved many problems of traditional solid support.

Using the jackdrill dig into the same depth of bolt length.
Install the steel rising shell anchor head on the hollow bolt.
Put hollow bolt into the ready hole.
Install stopper mortar plug, base plate and nut on up side of hollow bolt.
Reversal the bolt, and make anchor head' rising shell grasp well of hole.
Fulfill the mortar.

 

Applications of Self-Drilling Hollow Rock Bolts

Radial reinforcement

Hollow anchors replace traditional mortar anchors for radial reinforcement, which can completely solve many defects such as incomplete grouting and inability to achieve pressure grouting during the construction process of traditional mortar anchors, ensuring the quality of the project.

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Slope reinforcement

Using hollow anchors to reinforce unstable slopes not only has a simple process and low cost, but also is convenient and quick to construct and has remarkable effects.

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Foundation pit support

Hollow anchors are used to reinforce foundation pits of buildings, which not only has a simple process, but also can realize pressure grouting and improve the surrounding rock conditions of foundation pits.

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