深部矿井构造区厚煤层冲击地压机理与应用

Mine Pressure Bump Mechanism of Thick Seam in Deep Mine Structure Zone and Application

为防止深部矿井构造区厚煤层巷道冲击地压的发生,通过理论分析建立了构造区厚煤层巷道冲击地压发生的力学模型,分析巷道层位与冲击地压破坏特征,研究了构造区厚煤层巷道冲击地压类型。根据具体煤层条件,通过实施人为缺陷调整转移煤层应力场,使构造区巷道围岩弹性能持续、缓慢释放,形成卸压带降低巷道冲击地压危险性,从而有效防止深部构造区厚煤层冲击地压发生。

In order to prevent and control the mine strata pressure bumping occurred in the mine thick seam gateway of the deep mine structure zone ,with the theoretical analysis, a mechanics model of the mine strata pressure bumping occurred in the thick seam gateway of the structure zone was established, the failure features of the gateway horizon and the pressure bumping were analyzed and the pressure bumping type of the seam gateway in the structure zone was studied. According to the certain seam conditions, with the artificial defects conducted to adjust and displace the seam stress field,the purpose to continuously and gently release the energy of the structure zone was reached, the pressure released zone formed could reduce the mine pressure bumping danger of the seam gateway and could effectively pre- vent and control the mine pressure bumping occurred in the thick seam of the deep structure zone.