断层倾角对煤层底板突水影响的机理研究

平朔井工一矿发育有大量复杂断层,在采动影响下活化造成突水,极大增加了工作面底板突水危险性。运用基础力学建立力学模型,对断层活化导水机理进行理论分析,揭示了突水通道形成过程,得到突水的理论判据。研究表明:断层倾角是影响底板突水的关键因素,断层倾角越小越易活化导水。

Study of Mechanism About Fault Dip's Impact on Water Inrush of Coal Floor

A large number of complex faults develop in Pingshuo underground mine,which leads to water-inrush when activated under mining,thus greatly increases the risk of water-inrush working face floor.Builds a mechanical model by basic mechanics to analyse the water-inrush mechanism when faults are activated,revealing the forming process of water-inrush,and finding the water-inrush criterion theory.According to the study,the fault dip is a key factor affecting water-inrush,smaller faults dip is more prone to leading to water inrush.