深部构造区掘进工作面冲击地压防治技术研究

Study on prevention and control technology of rock burst at heading face in deep structural area

针对深部构造区掘进过程中动力显现频发,严重影响矿井安全生产的实际问题,本文开展深部构造区巷道围岩应力分布特征及其破坏机理研究,由此得出,巷道围岩中静载荷分布将因与构造相对空间位置的变化而不同,具体表现为在断层处容易出现顶板下沉、冒顶等现象,而在褶曲构造带容易出现底鼓、底板冲击等现象,并针对性地制定了冲击地压防治措施,节约了人工及材料成本,经济效益显著。

In view of the frequent occurrence of dynamic forces in the process of excavation in deep tectonic areas,which seriously affects the actual problems of safe production of mines,the study on the stress distribution characteristics of roadways in deep tectonic areas and their destruction mechanism was carried out,and it was concluded that： The distribution of static load in roadway surrounding rocks will be different due to the change of relative spatial position with the structure. The specific manifestation is that the top plate sinks and rises at the fault,and the bottom drum and bottom plate impact are likely to occur in the pleated tectonic zone. And targeted to formulate measures to prevent and control the impact of the ground pressure,saving labor and material costs,and significant economic benefits.