Supporting structure of ejector anchor net

Abstract

The invention discloses a supporting structure of an ejector anchor net. The supporting structure comprises an anchor net and a plurality of anchor rods fixed in the anchor net, wherein trays are sleeved on the outer ends of the anchor rods, and the trays are fixed on the anchor net; the anchor net is composed of a glass fiber reinforced plastics anchor net main body and a plurality of reinforced ribs intermittently arranged on the glass fiber reinforced plastics anchor net main body, and the anchor rods are fixed on connections between the reinforced ribs and the glass fiber reinforced plastics anchor net body, and hooks are arranged on the reinforced ribs and penetrate through the trays. The anchor net body is made from glass fiber reinforced plastics instead of a metal material, so that the condition that concrete can be cracked and fallen off due to the fact that the anchor net is corroded while meeting water can be prevented; furthermore, the reinforced ribs are arranged on the glass fiber reinforced plastics anchor net main body, so that the integral structural strength can be improved; meanwhile, the trays are secondarily fixed through the hooks, so that the connection between the trays and the anchor net can be enhanced, the loosing or failure of the trays due to outside factors such as vibration of blasting can be prevented, and the shock resistance and supporting effect of the supporting structure of the ejector anchor net can be improved; in addition, the supporting structure provided by the invention is high in strength, good in tenacity, light in weight, and good in manufacturability, and the working efficiency can be improved and the maintenance cost can be reduced.

Description

technical field [0001] The invention relates to a mine and tunnel protection structure, in particular to a spray bolt mesh support structure. Background technique [0002] At present, most of the shotcrete meshes used in the support technology of mines and tunnels are metal meshes, which are usually woven from iron wires or rebars. Such metal meshes are easily damaged by water during the support process. Corrosion leads to support failure, so the support effect cannot be effectively guaranteed, which brings many safety hazards to mines or tunnels; in addition, the metal mesh is heavy, and it is difficult to carry and construct, making workers labor-intensive; in addition, the metal mesh is difficult to weave. , the cost is high, which affects the widespread use of spray anchor mesh support. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a shotcrete support structure in view of the above problems. The shotcrete support structure is cor...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the sprayed anchor nets used in the sprayed anchor net support technology of mines and tunnels are metal nets, which are usually woven by iron wire or screw steel. Corrosion leads to support failure, so the support effect cannot be effectively guaranteed, which brings many safety hazards to mines or tunnels; moreover, the weight of the metal mesh is difficult to carry and construct, which makes the labor intensity of the workers high; in addition, the weaving of the metal mesh is difficult , the cost is high, which affects the widespread use of spray anchor net support

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