【摘要】 在理论分析的基础上,建立了承压水上采煤的固流耦合数学模型,并编制了有限元程序,利用该程序用数值模拟的方法,系统地分析了各断层要素影响下采场的应力分布规律及突水机理,得出了断层倾角、断层厚度和断层断距与突水的关系;采用三元线性回归法,确立了正、逆断层下临界断层防水煤柱宽度与各断层要素的拟合关系式,给出了突水判据.更多还原

【Abstract】 The solid-fluid coupling mathematical model for coal mining above confined aquifer was established after theoretical analysis.Based on this,the finite element program was developed.The working face stress distribution and the water inrush mechanism were researched systematically using numerical simulation method.Relation between different conditions of fault dip angle,fault thickness,fault throw and water-inrush was obtained.The fitted formulas between critical width of fault waterproof pillar and major factors in normal fault and reverse fault were established by using ternary linear regression method,and the water inrush criterion was given.更多还原