袁店二矿82采区回风巷道修复加固

摘要

There was a high mine ground pressure in the air returning gateway of No.82 mining block in Yuandian No.2 Mine.After a section construction with the bolt/steel mesh/shotcreting support , there was a high deformation occurred in the gateway and a repair and reinforcement should be con‐ducted.According to the certain condition , with the finite element analysis ,a bolt/grouting/steel mesh/shotcreting combined support plan was set up to repair and reinforce the gateway.After the re‐pair and reinforcement construction ,the deformation of the gateway was obviously reduced and the gateway was in stable and could meet the ventilation requirements of No.82 mining block.%袁店二矿82采区回风巷道地压较大，原锚网喷支护的地段施工后，变形较大，需要修复加固。根据具体情况，经过有限元分析，确定巷道修复加固采用锚注网喷联合支护方案。修复加固施工后，巷道变形明显减小，并趋于稳定，满足了82采区通风要求。