采用数值模拟软件FLAC5.0对淮南矿业集团朱集矿-870m煤层回风大巷不同的支护方案进行了模拟,对比分析不同支护方案的围岩塑性区分布情况、围岩应力分布特征以及围岩变形特点,得出深井高应力巷道安全控制应以组合支护为主,并提出在巷道周边围岩构建闭式承载结构的思路,对深部巷道的围岩稳定性控制具有一定的指导意义。
Applying numerical software FLAC5.0 to simulating different supporting projects of air-roadway at-870m in Zhuji Colliery of Huainan Mining Group,plastic area distribution,stress distribution and deformation characteristic of surrounding rock under different supporting projects was analyzed.Results showed that deep roadway with high-stress should be controlled by combined supporting.A concept of constructing closed loading structure in surrounding rock of roadway was put forward,which could provide reference for roadway stability control.