Characteristics of Full Length Grouting Cementing Anchor Cable
1. The installation and pre-tightening method of the anchor cable is exactly the same as that of the resin anchor bolt (thread fastening), and the tensioning process is cancelled. It can not only realize the rapid installation of mixing and tensioning integration, but also make the anchor cable and the anchor bolt carry synchronously, forming the overall supporting role;
2. The cable body and locking structure adopt a new structure, which minimizes the diameter of the cable body under the premise of ensuring the diameter of the grouting. The required installation aperture is much smaller, the installation efficiency is high, and the small aperture and large tonnage are realized.
3. The anchor cable body is a new type of hollow structure with grouting core tube and adopts reverse grouting method, which not only eliminates the possibility of cavitation, but also eliminates the need to tie grouting pipe, exhaust pipe and block grouting holes on site, greatly simplifying the construction steps;
4. The upper part of the cable body is the stirred resin coil end anchor, and the lower end is locked by thread, which can be carried immediately after installation, which is impossible for all kinds of existing grouting anchor cable products, and it is very beneficial and necessary for the roof rock with poor self-stability;
5. The screw locking method, the locking mechanism is reliable, will not slip, will not produce sparks, the adaptability of the underground wet and water environment is unmatched by the clamping clamping method;
6. The anchoring strength of the anchor cable made of high-strength spiral rib prestressed steel wire is more than 15% higher than that of the anchor cable cut with the same diameter, and the anchoring ductility can be increased by more than 25%.
7. Because it can be carried immediately after installation, the grouting can be arranged to fill a certain range of anchor cables at a certain distance behind the head, so the construction is very convenient; The screw locking mechanism has the function of adjusting the heart, and the exposed length of the anchor cable is small and uniform, which does not affect the effective height of the roadway.
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