Movable suspended protection rib plate supporting structure for roadway

Abstract

The invention discloses a movable suspended protection rib plate supporting structure for a roadway. The movable suspended protection rib plate supporting structure comprises upper baffles, side baffles, an anchor rod, a top rotating shaft, side rotating shafts, an elastic slice and limiting elastic slices. One ends of the upper baffles are hinged to the top rotating shaft and the other ends of the upper baffles are hinged to the side rotating shafts, and the upper ends of the side baffles are hinged to the side rotating shafts. The upper end of the anchor rod is anchored at the top of the roadway, and the lower end of the anchor rod is hinged to or fixedly connected with the top rotating shaft, the top rotating shaft is arranged along extending direction of the roadway, and the upper baffles hinged to the two sides of the top rotating shaft form a reversed-U shape or a reversed-V shape. The two sides of the elastic slice are separately and fixedly connected with the lower surfaces ofthe upper baffles hinged to the two sides of the top rotating shaft, the limiting elastic slices are of C-shaped structures and are arranged on the lower surfaces of the upper baffles connected with the side rotating shafts and the inner side faces of the side baffles, and one sides of the limiting elastic slices are fixedly connected with the lower surfaces of the upper baffles or the inner surfaces of the side baffles. The movable suspended protection rib plate supporting structure can effectively overcome the defects of a traditional roadway supporting structure, and can effectively protectroof falling and rib spalling of a mine roadway and a temporary traffic tunnel.

Description

technical field [0001] The invention belongs to the technical field of roadway support, and in particular relates to a movable suspension bone plate support structure for roadways with simple structure, short construction period, reusability and good protection effect of "roof caving". Background technique [0002] Roof caving means that during the excavation and lining of mines, tunnels and culverts, due to excavation, inspection, handling of pumice or improper support, the top or side wall of the roadway is subjected to blasting vibration, external force disturbance, ground pressure change, surrounding rock When the stress is released, the rock block suddenly collapses and falls, causing injury to the operator. The collapse phenomenon of the working face and the side wall of the roadway is called the side wall, and the collapse of the top is called the roof fall. [0003] Underground metal or non-metal mines are high-risk industries, among which "roof fall" is one of the ...

AI Technical Summary

Problems solved by technology

Although the above-mentioned support methods can basically effectively prevent and protect the "roof caving", they also have the disadvantages of cumbersome procedures, long construction period, high labor intensity, high cost, and cannot or are difficult to reuse

In particular, the widely used I-steel trapezoidal rigid bracket support, because the rigid bracket cannot adapt to the deformation and movement of the surrounding rock, and is unable to prevent the deformation of the surrounding rock, it is difficult to avoid deformation and damage caused by overload support

Therefore, for the underground mine rigid support support, it can not form long-term support for the roadway, and it is difficult to form effective protection when the "roof collapse" is caused by the support gap of the rigid support support. Auxiliary measures such as slurry are used for protection, so that the underground must be constructed gradually on site to form a complete support structure, which makes the construction period long and labor-intensive, and the supports and anchor nets cannot be reused, resulting in high overall costs.

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