节点文献
折线型综放面开采顶煤运移破坏规律及支架受力特征的数值模拟研究
NUMERICAL ANALYSIS ON MOVEMENT AND FAILURE OF COAL AND STRESS CONDITION OF SUPPORT STRUCTURES IN MECHANIZED TOP-COAL CAVING IN STEEP THICK SEAM
【摘要】 应用UDEC2D计算程序,模拟了某矿水平与倾斜联合布置的折线型综采面,揭示了综放开采过程中的采场覆岩与顶煤的运移规律及相应的应力场、破坏场的变化特征,并采用FLAC3D对沿折线型综采面布置的支架的受力及其运移特征进行了分析,研究结果对现场工程实践有一定的指导意义。
【Abstract】 The rules of coal and rock movement,the characteristics of deformation and failure of coal,and the major principal stress in the process of top-coal caving in steep thick seam are analyzed by using UDEC2D.The characteristics of stress and movement of support structure at top-coal caving face are investigated by using FLAC3D.The simulation results agree with the field conditions.
【关键词】 采矿工程；
大倾角厚煤层；
综采放顶煤；
数值模拟；
煤岩运移规律；
【Key words】 mining engineering； steep thick seam； mechanized top-coal caving； numerical simulation； rules of coal and rock movement；
【Key words】 mining engineering； steep thick seam； mechanized top-coal caving； numerical simulation； rules of coal and rock movement；
- 【文献出处】 岩石力学与工程学报 ,Chinese Journal of Rock Mechanics and Engineering , 编辑部邮箱 ,2004年S1期
- 【分类号】TD325
- 【被引频次】12
- 【下载频次】227