摘要
采用应力-渗流耦合的数值计算方法,分析承压含水层下采煤过程中渗流场、应力场演化规律,分析了工作面推进过程中岩石破断规律,探讨岩层交界面、天然断层、裂缝对岩石裂缝扩展路径的导向作用,孔隙水压力分布、水头分布的变化规律,预测承压流体涌入工作面的可能性,为煤矿灾害预警和优化开采提供参考。
With coupling numerical calculationof stress and seepage,analysis ofcoal mining underseepage-stress field evolution,and the working face advancing guiding role in the process of rock breaking rules with rock interface,natural faults,and cracks on the rock crack propagation were conducted.Change laws of distribution of porosity fluid pressure and waterhead were revealed. The possibility of fluid influx intothe working face waspredicted. Results can be used for coal mining disaster prediction and mining optimization.
作者
杨晓琴
于永军
YANG Xiao-qin;YU Yong-jun(College of Mining Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Key Laboratory of In-situ Property-improving Mining of Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,China;School of Sources and Civil Engineering,Northeastern University,Shenyang 110819,China)
出处
《煤炭技术》
CAS
2019年第2期88-90,共3页
Coal Technology
基金
国家自然科学基金(51504159)
太原理工大学2014年校青年(团队)基金(2014TD008)
关键词
综采
近水平煤层
矿井灾害
流固耦合
数值计算
fully mechanized mining
flat coal seams
mining disaster
fluid-solid coupling,numerical calculation
