基于“下三带”理论的底板隔水层破坏机理研究  

Research on Failure Mechanism of Floor Aquifuge Based on "Down Three Zones" Theory

作　　者：王国际[1,2] 杨腾飞[1] 王公忠[2] 彭聚云[3] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454000 [2]河南工程学院安全工程系,河南郑州451191 [3]河南理工大学万方科技学院,河南焦作454000

出　　处：《中州煤炭》2011年第11期4-5,24,共3页Zhongzhou Coal

摘　　要：为了进一步认识采煤工作面底板岩溶水突出机理,基于底板"下三带"理论和岩体极限平衡理论,采用力学和数学相结合的方法,探讨在采动影响下煤层底板隔水层破坏的机理,得出了底板隔水层破坏的临界水压力公式和底板突水的判断依据,并通过工程实例验证了上述结论。In order to deeply understand the mechanism of karst water inrush from mining face floor,based on the theory of coal seam floor ＂Down Three Zones＂ and rock limit equilibrium,failure mechanism of floor aquifuge affected by mining was discussed by using the method combining with mechanics and mathematic.The judgment basis of water inrush of floor and formula of critical water pressure were obtained,and all these were confirmed by engineering example.

关 键 词：下三带 采煤工作面 隔水层 底板突水 

分 类 号：TD745.2[矿业工程—矿井通风与安全]