What Is The Anchor Beam System Of Anchor Rods

What is the anchor beam system of anchor rods?

At present, in the production mines of various companies in China, some of the mining depth has reached more than 500-1000 meters, and the ground stress, surrounding rock force and deformation are complicated and diverse, a single anchor support can no longer meet the requirements of support for the broken roof plate, composite roof plate, and the roadway with high roof plate pressure, and the anchor beam system, which is composed of the anchor rods and the W-beam steel belt, can effectively control the roof plate, and it can be used in the support of the roadway with large breaks, and the refuge at the same time. Support.

The anchor beam system is generally applicable to rock strata below medium stability. The application of the anchor beam system in coal mine tunnel support saves a lot of steel and wood. At the same time, it also greatly reduces the labor intensity of workers, improves the labor environment of workers, and brings significant economic and social benefits for the effective production of coal mines.

With the enhancement of the production consciousness of industrial and mining enterprises, as well as China's special requirements for the production of mineral anchor plate, hollow anchor, W-type steel belt, coal mine support profiles are also more and more attention, such support profiles is to ensure that the mining industry is an important part of the production.

Hollow anchor is a kind of long and thin rod which is deep inside the rock and soil and can control the deformation of the rock and soil, there are some small parts on it such as pads and nuts, and the whole anchor is divided into free end and anchoring section. Although it is small and weak, it is very important in the work. When it is used, it is a section connected to the engineering structure and the other end is deep into the ground.

The number of anchors is single, double or triple, and the combination of different anchoring angles and number of anchors results in a variety of anchored fissure specimens. An indoor method for anchor testing. Firstly, in order to develop a mortar material that meets a certain similarity ratio with the physical and mechanical parameters of the actual rock body, five sets of mortar material mixing ratios were designed, and one-way compression and splitting tests were carried out on the intact specimens of mortar of various mixing ratios to determine a mortar mixing ratio that meets the requirement of similarity ratio, and according to this similarity ratio, an alloy of aluminum rods was selected as a similar anchor for the indoor test.

Secondly, unidirectional compression and splitting tests were carried out on the fissure specimens and anchored fissure specimens. Combined with the test results of the previous stage, the weakening effect of the pre-set fissure on the mortar material and the reinforcing effect of the anchors on the fissure specimens were studied under unidirectional compression and splitting, respectively, and the uniaxial compressive strength of the anchored fissure specimens and the changes of the peak load with the increase of the anchor angle and the number of anchors were obtained under splitting conditions. Then, bi-directional compression tests were carried out on the intact specimens, cracked specimens and anchored crack specimens. The weakening effect of the preset cracks on the mortar material and the reinforcing effect of the anchor rods on the crack specimens under different lateral pressure conditions were investigated. The compressive strengths of the anchored crack specimens under bi-directional compression conditions were obtained to show the variation of the anchoring angle and the number of anchors, and the bi-directional compressive strengths of the specimens were obtained to show the variation of the anchoring angle and the number of anchors, and the variation of the bi-directional compressive strengths of the specimens under the increase of the lateral pressure.