含断层煤层顶板采动效应数值模拟研究  

Study on Mining Effect of Coal Seam with Fault by Numerical Simulation

作　　者：颜恭彬 YAN Gong-bin(Chongqing Research Institute,China Coal Technology and Engineering Group,Chongqing 400039,China)

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400039

出　　处：《煤炭技术》2018年第10期94-97,共4页Coal Technology

摘　　要：通过选取断层产状要素中的倾角、断距及断层带宽度3个要素,采用正交试验法,建立了9组不同的岩体力学模型,运用FLAC3D数值模拟再现了含断层煤层开采过程中顶板岩层变形、破坏及应力分布的整个过程。模拟结果显示,断层带宽度对冒落带影响最大,倾角对导水裂缝带影响最大。By selecting three elements of fault occurrence factors,such as angle,fault distance,width of fault,using the orthogonal experimental method,established 9 different groups of coal seam containing fault rock mechanics model,using FLAC^3D numerical simulation to the whole process of mining with faults in coal in roof rock deformation,failure and stress distribution.The numerical results show that the width of fault zone has the greatest influence on the caving zone,and the dip angle of the fault has the greatest influence on the water diversion fracture zone.

关 键 词：煤层顶板 断层 采动效应 正交试验 

分 类 号：TD325[矿业工程—矿井建设]