许疃煤矿8223工作面开采覆岩破坏特征的研究  

Research on Damage Features of Cover Rock in 8223 Work Face of Xutuan Coal mine

作　　者：葛英豪[1] 肖建辉[2] 刘文中[2] 冯士安[2] 

机构地区：[1]淮北矿业集团公司许疃煤矿,安徽淮北233500 [2]安徽理工大学地球与环境学院,安徽淮南232001

出　　处：《煤矿安全》2009年第3期15-18,共4页Safety in Coal Mines

摘　　要：分析了8223工作面煤层赋存特征,建立了工作面的三维地质模型;以煤层顶板岩石的力学试验结果为数据,利用FLAC3D程序对开采引起的煤层覆岩运移进行了数值模拟;分析了开采过程中煤层覆岩的位移和应力分布规律,讨论了工作面煤层顶板的破坏形式及变形特征。The establishment of the three - dimensional geological model of 8223 work face was based on the features of coal occurrence. Reference the rock mechanics test data, the cover rock movement caused by underground mining was simulated by using software FLAC^3D. The displacement and stress distribution of cover rock caused by underground mining was analysed , the damage and deformation characteristics of the top floor was discussed.

关 键 词：覆岩破坏 FLAC^3D 数值模拟 

分 类 号：TD325.4[矿业工程—矿井建设]