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Abstract In order to solve the problem of large deformation of surrounding rock under the original support mode of the 15502 working face, the anchoring method in the bolt support was numerically simulated by analyzing the main reason of the large deformation of the surrounding rock of the roadway. Pre-tightening force was used for simulation analysis. It was determined that the anchor bolts after optimization were extended with anchoring to improve the pre-tightening force of the anchor cables. The supporting scheme of the roadway was optimized according to the specific geological conditions, and the monitoring effect of the mine pressure monitoring was verified. . The results showed that after the implementation of the support scheme, the maximum values of the deformation of the top and bottom and the two sides of the 15502 working face were 150 mm and 130 mm respectively, which ensured the stability of the surrounding rock of the mining roadway.
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