Split set is a new type of anchor for full-length anchoring and active reinforcement of the surrounding rock. It has the advantages of strong material performance, convenient manufacturing process, and ease of use in construction, and plays an important role in underground support construction . However, the anchor effect of split set is often affected by many factors, for example, anchoring methods, construction quality, and rock properties. How to make full use of split set?

1. Construction of split set

Straightness of the rock hole should be improved to ensure the construction quality of split set. At the same time, the quality of drilling should be ensured so as not to cause tilting of the hole. Once this happens, the anchor cannot be fully inserted, and the rock surface cannot be tightly fitted to the pallet, resulting in an insufficient overall support effect. To solve the above problems, it is necessary to continuously increase the pre-tightening force of the pallet. Therefore, adjusting the length and controlling the diameter of anchor will stabilize the surrounding rock and avoid deformation, thus improving the overall support effect of split sets.

2. Maintenance of split set

In the daily maintenance of split sets, the relevant units should make a targeted and feasible maintenance plan. In actual operation, the well-developed protocols and programs should be strictly implemented. The purpose of the roadway, the actual condition of the surrounding rock, etc., will become its formulation basis. Therefore, it is necessary to master all kinds of applicable anchor support methods for the technical management of relevant staff. At the same time, relevant maintenance personnel also need to take into account the actual changes in the surrounding rock at work, make appropriate local adjustments to the operating procedures, and constantly improve the operating procedures.

3. Stability of split set

① The construction of split sets is relatively simple and fast. The split set can resist the shear force of the rock to a certain extent through the active reinforcement of the three stresses, thereby improving the overall stability of the support project.

② Split set cannot be applied to the filled section. Based on the reliability perspective, the filling of rock cracks can be strongly corrosive to the anchor support, which reduces the overall stability of the anchor support to a certain extent. In addition, the split set is not suitable for faults, large cracks, and other areas. Therefore, when performing split set support operations, its adaptation range should be enhanced by the relevant staff to take into account, so as to play the role of split set.

The wide application of split sets can not only strengthen the rock but also greatly reduce the compressive capacity between the rocks. The advantages offered by the construction of split sets are also driving the economy, rationality, and safety of the industry to some extent.