某矿9~#煤顶底板采动效应数值模拟  

Numerical Simulation of Roof and Floor Mining Effect in No. 9 Coal Seam of A Mine

作　　者：刘芙荣[1] 姜振泉[1] 张蕊[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221116

出　　处：《煤矿安全》2012年第6期9-12,共4页Safety in Coal Mines

摘　　要：以某矿9#煤9418工作面为研究实例建立工程地质模型,在分析其工程地质、水文地质及开采条件的基础上,采用FLAC3D有限差分数值计算软件对工作面推进过程中顶底板的采动破坏规律进行数值模拟,得到了工作面推进过程中顶底板应力场、位移变形及塑性破坏区的基本发展变化规律,为煤矿安全生产和煤矿水害防治提供参考依据。An engineering geological model is established by taking the 9418 working face in a mine No.9 coal as an example.On the basis of analyzing engineering geological,hydro-geological and mining conditions of the mine,the finite difference software of FLAC 3D is utilized to simulate the mining and damage laws of the roof and floor caused by working face advancing.The basic development changes laws of the stress field,displacement deformation and plastic failure zone of the roof and floor during the process of working face advancing were obtained.And this would provide preference for the mining safety and the prevention of the water-inrush.

关 键 词：底板变形 数值模拟 充分采动 应力场 位移变形 塑性破坏区 

分 类 号：TD322.1[矿业工程—矿井建设]