Bracket for construction of shotcrete anchor net support in broken area in high seismic zone

Abstract

The invention discloses a bracket for spray anchor net support construction for a high seismic zone crushing area. The bracket comprises one or more bracket single bodies; the bracket single bodies comprise spray anchor nets, bracket strips, limiting plates, positioning nuts and inserting rods; each spray anchor net is composed of a spray anchor net main body frame arranged on the periphery and aplurality of reinforcing ribs arranged in the spray anchor net main body frame at intervals; the multiple reinforcing ribs form reinforcing rib nets, and the inserting rods are evenly inserted in thereinforcing rib nets; the bracket strips are fixed to the two sides of the spray anchor net main body frames correspondingly, and the multiple limiting plates are evenly fixed to the outer side facesof the bracket strips in the axial direction of the bracket strips; and the limiting plates and the bracket strips are mutually perpendicular, and first nut mounting holes for mounting the positioningnuts are formed in the limiting plates in the axial direction of the bracket strips. Through the structure, the spray anchor nets can be prevented from sliding down, the using efficiency of the sprayanchor nets is greatly improved, and the bracket is further conveniently separated to be carried.

Description

technical field [0001] The invention relates to the technical field of shotcrete anchor net supports, in particular to a support for spray anchor net support construction used in broken areas in high seismic zones. Background technique [0002] Shotcrete support refers to the combination of anchorage and shotcrete to strengthen the surrounding rock of underground caverns. Shotcrete is the use of shotcrete equipment to spray a certain thickness of concrete layer on the excavation surface of underground caverns to support the surrounding rock. Shotcrete can be used as the initial support of the surrounding rock of the cavern, and can also be used as a permanent support. The sprayed anchor support is a system that makes the plunger, the concrete sprayed layer and the surrounding rock work together to prevent the rock mass from loosening and separating. sprayed concrete. [0003] But there are defects in the support of the sprayed anchor net in the prior art, for example: at ...

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Problems solved by technology

[0003] But there are defects in the support of the sprayed anchor net in the prior art. For example: at present, the sprayed anchor net needs to be supported by a support when in use, but the support used in the sprayed anchor net in the prior art has deficiencies, and cannot be used in use. The spray anchor net is well fixed at the desired place, so that the spray anchor net slips during spraying, which will reduce the solidification strength of the spray and greatly reduce the use efficiency of the device, so it cannot meet the needs of the existing technology

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