摘要
为分析煤矿采场底板断层采动活化机理,以司马煤矿为背景采用理论分析、数值模拟、室内试验等方法,在考虑采动应力和水压力的基础上进行了研究。推导出了完整底板及含断层底板采动破坏深度的表达式;采用模拟断层带填充物渗透性试验及FLAC^(3D)数值模拟软件,研究了煤层开采过程中应力变化对断层带渗透特性的影响,并通过现场断层带联通性试验验证了司马矿断层带阻隔水能力较弱。
In order to analyze the fault activation mechanism of coal mining stope floor,in this paper,considering mine-induced stress and groundwater pressure it have,we use theoretical analysis,numerical simulation,laboratory testing and other methods in Sima Coal Mine. The failure depth formulas during coal mining of complete floor and fault-containing floor are deduced. The influence of the stress change on the permeability of fault during the process of coal mining is studied using the permeability test of fault zone filling and the FLAC^3D numerical simulation software. And through the field test,fault connectivity test,it is proved that the barrier water capacity of the fault zone of Sima Coal Mine is weak.
出处
《煤炭工程》
北大核心
2018年第1期85-88,共4页
Coal Engineering
关键词
断层活化
突水机理
裂隙
渗透性试验
数值模拟
fault activation
water inrush mechanism
fracture
permeability test
numerical simulation
