Resin anchor bolt is a new type of anchor that is material-saving, labor-saving, and equal-strength. It has broad application prospects and is currently highly recognized in the market. Its structural feature is that the whole length of the rod body has rolled continuous threads, the total length is equal strength, and the fastening end is provided with a prestressed gasket and a ball head nut. The advantage of resin anchor bolt is that the load capacity of anchors of the same specification is increased by 40%, and the scope of use of the anchors can be expanded. End anchors, extended anchors and full anchors can be realized.

1. The specifications and application scenarios of mine resin anchor bolt

The resin anchor bolt is divided into two types: left-handed and right-handed. The nut is special and does not require a wire at the end. The specifications are 16mm, 18mm, and 20mm. Non-longitudinal rib threaded steel resin anchor bolt implements MTl46, 2-2002 standard. This kind of anchor made by special processing technology has high-quality characteristics such as high strength, reasonable structure and large preload. It can also automatically adjust the direction of the force, increase the binding force on the surrounding rock, and can realize mechanized rapid installation. The strength of the thread segment is greater than the strength of the rod body, and the bending and shearing performance is good. End anchors, lengthened anchors and full anchors are mainly used for high-strength support of large deformation roadways in high-pressure mines, and can also be used for high-strength and long-term support of railways, hydropower and other projects.

2. How to use resin anchor bolt

A. Determine the location of the anchor hole according to the design requirements, and drill holes with drilling tools;

B. Blow out the rock powder in the hole with compressed air to ensure the cleanliness of the interior, and then send the anchoring agent to the bottom of the hole, use the anchor rod to start stirring;

C. After the mixing is completed, remove the mixing equipment. After the waiting time is reached, remove the mixing connector, install the anchor disk, ball washer, friction washer, and tighten the nut with a special wrench.

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