煤层底板隐伏小断层突水数值模拟  

The Water Inrush Numerical Simulation of Minor Faults Concealed in Coal Seam Floor

作　　者：黄存捍[1] 黄俊杰[2] 李振华[3] 

机构地区：[1]河南理工大学资源环境学院,河南焦作454000 [2]河南理工大学机械与动力工程学院,河南焦作454000 [3]河南理工大学能源与科学工程学院,河南焦作454000

出　　处：《煤矿安全》2013年第10期24-26,共3页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51104058);河南理工大学博士基金资助项目(B2011-19)

摘　　要：针对煤层底板隐伏小断层突水过程,应用RFPA-FLOW2D软件进行模拟计算分析。结果表明:在矿压和水压共同作用下,煤层底板破坏过程经历了小断层活化、小断层活化区扩展和裂隙贯通3个阶段;底板渗流场和裂隙场同步演化,突水位置可准确标定。多条小断层突水过程模拟结果表明,隐伏小断层越发育,底板破坏区贯通强度越大,煤层底板发生突水的可能性也越大。With the numerical simulation software of RFPA - FLOW2~} , the water inrush process of minor faults concealed in coal seam floor is analyzed. It shows that there are three stages during the process of seam floor failure under the action of the mine pressure and water pressure, including the active stage, expanding stage and fissure transfixion stage. Due to the simultaneous evolution of floor fi＇ac- ture field and seepage field, the water inrush position can be determined accurately. The simulation results of water inrush induced by several minor faults show that the larger development of concealed minor faults is, the bigger of the failure zoneg transfixion strength is, and the easier of the water inrush will happen.

关 键 词：隐伏小断层 数值模拟分析 裂隙场 渗流场 

分 类 号：TD745[矿业工程—矿井通风与安全]