Sleeve Anchor Bolts MF40 For Tunnels And Mines

Description of Sewn Tube Anchor

1、Good supporting effect. Anchor support in support principle in line with modern rock mechanics and rock control theory, belongs to the "active" support. After the installation of anchor, it reinforces the surrounding rock inside the surrounding rock, and quickly forms an overall bearing structure of the surrounding rock as a support, so it can mobilize and utilize the stability of the surrounding rock itself, give full play to the bearing capacity of the surrounding rock itself, and effectively control the deformation of the surrounding rock of the roadway, so the anchor support is more conducive to the protection of the stability of the surrounding rock of the roadway, and improve the maintenance of the roadway.

2、Low labor intensity and high efficiency. Compared with the traditional shelf support, because the support material used in anchor support is less, lighter weight, roadway excavation, reducing the amount of support material transportation, labor intensity is also greatly reduced, and is conducive to improving the efficiency of excavation. When the work face is mined back, also eliminates the steel scaffolding bracket retraction work, not only reduces the labor intensity of workers, but also improves the safety factor ymjt01.

3, the economic benefits are obvious. The use of anchor support can reduce the input of support materials and reduce the cost of direct support. As the anchor support basically does not occupy the effective section of the roadway, the construction of the section that is the net section, and therefore in the support design, you can correspondingly reduce the section of the roadway, saving a lot of material.

Technical Parameters

Material:Q235,16Mn,20Mnsi

Outer diameter (mm):φ30,φ33,φ40,φ43 

Length (mm):1200,1500,1800,2000,2500

Scope of application

Simple installation, durable, uniform force

Company strength

Equipment first strength company has 16 senior engineers, 38 technicians, 150 technicians, professional product designers, and has advanced production equipment to meet your needs for use.

Working Principle of Pipe Slit Anchor

When a slotted anchor is installed in a hole smaller than the diameter of the pipe, three forces are applied to the surrounding rock: radial pressure on the hole wall over the entire length of the slotted anchor, friction to stop the surrounding rock from sliding down the hole, and the support force of the slotted anchor pallet, which makes the surrounding rock more stable.

Installation requirements of sewing tube anchor:

In accordance with the reinforced mortar anchor, generally divided into two types of construction process, first grouting and then anchoring and first anchoring and then grouting, first grouting and then anchoring construction method, when installing, we should pay special attention to the occurrence of leakage of the quality of the problem, while first anchoring and then grouting construction method, we should pay attention to the problem of grouting and exhausting, or else it will be easy to produce a situation where the grout is not full, and this will directly lead to the anchoring effect is not good. The main role of the pipe seam anchor is to restrain and reinforce the soil body, which can not only make up for the lack of tensile and shear resistance of the soil body, but also the anchor in the process of grouting construction, the cement slurry can penetrate into the internal fissures of the geotechnical body, and through the reinforcing effect of cement slurry on the geotechnical body, it can improve the structural strength of the geotechnical body itself.

Prestressing anchor installation, after the anchor head is anchored inside the anchor, the outer anchor end is tensioned with jacks, and about 10t of pre-tensioning force is added to each anchor, and the bolts of the pad plate at the end of the rod are tightened, and the whole length is grouted with cement mortar.

The company's main business

Supporting category: open slit anchor Rock friction stabilizer MF43 slit pipe anchor MF40 slit pipe anchor MF33 slit pipe anchor (open slit anchor, slit pipe anchor) Φ30,Φ33,Φ40,Φ43