摘要
突水通道是突水形成的必要条件,为此,对工作面底板的突水机理进行理论研究。结合下三带理论,将工作面底板的突水类型划分为正常型和构造性,对采场采动作用下工作面底板隔水层进行三带划分和厚度计算。结果表明,正常型突水过程的本质就是应力场和渗流场相互耦合作用不断加强的过程;不导水断层转变为了导水型断层,这是导致突水发生滞后的机理所在。
The water inrush channel is a necessary condition for water inrush. Therefore,it is necessary to study the floor water inrush mechanism of working face. Combined with the lower three zones theory,the floor water inrush type of working face is divided into normal type and structural type,and the three zones division and thickness calculation of working face floor are carried out. The results show that the normal type water inrush is the interaction of stress field and seepage field,and the non-conductive fault is transformed into the conductive fault,which is the mechanism leading to the lag of water inrush.
作者
李晋
LI Jin(Jinsheng Sangou Xindu Coal Industry Co. ,Ltd. ,Shanxi Jincheng Anthracite Mining Group Co. ,Ltd. ,Jincheng 048000,China)
出处
《陕西煤炭》
2019年第3期63-66,共4页
Shaanxi Coal
关键词
底板
下三带理论
断层
突水机理
floor
lower three zones theory
fault
water inrush mechanism
