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.
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 fac...
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2007年第10期1046-1050,共5页
Journal of China Coal Society
基金
国家自然科学基金资助项目(50434020)
黑龙江省自然科学基金资助项目(E200610)
关键词
承压水
断层突水
固流耦合模型
数值方法
confined aquifer
water inrush through fault
coupling model between flow and solid
numerical method
