Recyclable large pallet

Abstract

The invention discloses a recyclable large pallet. The recyclable large pallet comprises a leak-proof net, a load-bearing pallet, a small pallet and a plurality of load-bearing beams, wherein the leak-proof net is used for carrying the surrounding rock surface broken rock mass pressure, the load-bearing pallet is connected to the center of the leak-proof net and provided with a drop hole, the small pallet is used for carrying the load-bearing pallet and can pass through the drop hole after rotating, the load-bearing beams are used for carrying the surrounding rock pressure, and a plurality ofregular arranged net holes are formed in the surface of the leak-proof net; the load-bearing beams are radially connected to the edge of the load-bearing pallet; and an anchor rod installation hole for an anchor rod to pass through are formed in the small pallet. Under the condition of roadway large deformation convergence, because the load-bearing beams are radially connected to the edge of the load-bearing pallet, the pressure can be transmitted to the load-bearing pallet and the load-bearing beams after the leak-proof net is subjected to the surrounding rock pressure, the load-bearing beamsdeform and shrink compactly, thus the support force of the guard surface is higher and the support effect is more stable, and the appearance of net pocket is avoided; and meanwhile, the leak-proof net, the load-bearing pallet and the load-bearing beams can be recycled and reused, and the support cost is reduced.

Description

technical field [0001] The invention relates to the technical field of roadway support, and more specifically relates to a recyclable large pallet. Background technique [0002] With the rapid development of the economy, the society's demand for energy is increasing day by day, and the easy-to-mine resources in the shallow part are gradually exhausted, and the mine is gradually advancing to the deep part. [0003] Since the traditional anchor net support technology can no longer meet the needs of deep roadway stability control and low-cost mining, constant resistance extension anchor (cable), grouting anchor (cable), W steel belt, trapezoidal steel beam, I-beam Technologies such as beams, metal diamond nets, U-shaped support sheds, and sprayed concrete are gradually being used in mine construction. [0004] However, the above-mentioned products and construction schemes have cumbersome processes and high support costs. In particular, W steel belts, trapezoidal steel beams, I...

AI Technical Summary

Problems solved by technology

[0003] Since the traditional anchor net support technology can no longer meet the needs of deep roadway stability control and low-cost mining, constant resistance extension anchor (cable), grouting anchor (cable), W steel belt, trapezoidal steel beam, I-beam Technologies such as beams, metal diamond nets, U-shaped support sheds, and sprayed concrete are gradually being used in mine construction

[0004] However, the above-mentioned products and construction schemes have cumbersome processes and high support costs. In particular, W steel strips, trapezoidal steel beams, I-shaped steel beams, and metal rhombic mesh protection products are disposable consumables that cannot be recycled later, resulting in mine mining costs. high

[0005] At the same time, the above-mentioned watch protection products are prone to produce net pockets to reduce the watch protection effect under the condition of large deformation and convergence of the roadway, affecting the normal and safe production of the mine

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