φ42, φ46, φ47, Rock Anchor Bolts

Swellex bock bolt

Swellex is a rock support product commonly used in underground mining and tunnelling and is also known as a rock bolt.Swellex rock bolts are made from a special material that expands through grouting to provide solid support to stabilize rock and prevent rock failure. Installation of Swellex rock bolts requires specialized skills and equipment. Crews usually drill holes and insert the bolts into the holes and inject expansion material to give the bolts solid support in the rock.Swellex rock bolts are widely used in mines, tunnels, subways and other projects to improve construction safety and effici

Specification

Slit Tube Anchor Description

1、Good supporting effect. Anchor support in the support principle in line with modern rock mechanics and rock control theory, belongs to the "active" support. After the installation of the anchor, it reinforces the surrounding rock inside the surrounding rock, and quickly forms an overall bearing structure of the surrounding rock a protection, so it can mobilize and use 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.

Advantages:

( 1) Strong maneuverability :

( 2) Low labor intensity .

( 3) Fast construction speed :.

( 4) Reduces the cost of support :

( 5) Increases the integrity of the roadway .

Installation requirements of sewing tube anchor:

In accordance with the reinforced mortar anchor, it is 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, we should pay special attention to the occurrence of leakage of the quality of the grout problem in the installation, 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 sewing pipe 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 a jack, and about 10t of pre-tension is added to each anchor, the bolts of the pad plate at the end of the rod are tightened, and the whole length is grouted with cement mortar.

Installation

First, use wind drill to drill anchor holes on the roof plate, set the tray into the anchor rod body, and then use wind hammer to drive the rod body into the anchor holes, so that the tray is compacted with the roof plate gang belt. When using anchor rods, the drilling diameter selected by the user should be chosen according to the specific conditions of the rock and the provisions of GBJ86 standard, in addition to the reference table above.

Product Qualification