Underground mine arch suspension bridge supporting and bearing mechanism

Abstract

The invention discloses an underground mine arch suspension bridge supporting and bearing mechanism. The mechanism comprises a U-shaped supporting frame, wherein a suspension supporting assembly for enhancing the supporting strength of the U-shaped supporting frame and a mine is connected to the U-shaped supporting frame; and a top flattening assembly for flattening grouted slurry at the top is connected to the top of the U-shaped supporting frame, and the top flattening assembly is connected with the suspension supporting assembly. According to the underground mine arch suspension bridge supporting and bearing mechanism, the U-shaped supporting frame is arranged at a stope room drilling chamber of the mine, so that the supporting appearance of the bottom of the mine is kept conveniently;the suspension supporting assembly is arranged, so that the supporting strength between the stope room drilling chamber of the mine and the U-shaped supporting frame is enhanced conveniently; and thearranged top flattening assembly is adopted in the grouting process, so that grouted slurry at the tops of adjacent grouting anchor rods in the suspension supporting assembly is conveniently flattened, the grouted slurry at the U-shaped supporting frame is favorably flattened, and the overall supporting strength of the mine is improved.

Description

technical field [0001] The invention relates to the technical field of mine support devices, in particular to an underground mine arch suspension bridge support bearing mechanism. Background technique [0002] Under the action of high ground stress, the rock medium is disturbed after the excavation of the port road, the original equilibrium state of the rock is broken, and the stress in the rock mass is redistributed, which will deform or even destroy the surrounding rock of the port road. Therefore, the surrounding rock stability control and support technology of the mining port under the condition of high ground stress in the mine is one of the key issues to ensure the economical and safe mining of the mine; The support is used to ensure the strength of the arched suspension beam during the mining process. [0003] In the existing underground mine mining place, the rock-drilling chamber of the mine house is excavated at the arch beam of the mine, and the support frame is ...

AI Technical Summary

Problems solved by technology

[0003] In the existing underground mine mining site, the rock-drilling chamber of the mining house is excavated at the arch beam of the mine, and the support frame is installed in the rock-drilling chamber of the mine house, in order to improve the support strength of the support frame and the rock-drilling chamber of the mine house. , by installing multiple suspension support mechanisms composed of support anchors and support anchor cables inside the support frame, and calculating the distribution number and mutual spacing of support anchors according to the rock drilling chamber, in order to improve the support anchor Laying rate, using the combination of grouting anchor rod and grouting anchor cable, grouting from the grouting anchor cable, the grouting anchor cable is a vacuum anchor cable, there is a hole for grouting in the middle of the anchor cable, The grouting support bearing is formed at the rock drilling chamber at the grouting anchor. Since there are multiple grouting anchors arranged in the rock drilling chamber, the grouting bottom between each adjacent grouting anchor The grouting is solidified, and the grouting at the top of multiple adjacent grouting anchors lacks the effect of squeezing and smoothing, so that the grouting at the top is less effective than that at the bottom. Therefore, we propose an underground mine arch suspension bridge support bearing mechanism

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