秦源矿复杂结构厚顶煤破断失稳的数值模拟研究  

The Digital Simulation of Fracture of Thick Roof Coal with Complicated Structure in Qinyuan Mine

作　　者：李磊[1] 李新建[1] 

机构地区：[1]煤炭科学研究总院重庆研究院瓦斯通风防灭火研究所,重庆400037

出　　处：《山西煤炭》2008年第4期1-4,共4页Shanxi Coal

摘　　要：针对秦源煤矿复杂结构厚顶煤冒放性差,顶煤回收率低的实际情况,利用离散元模拟软件UDEC3.1,采用数值模拟方法,分析了不同条件下顶煤的应力场、位移场和破坏场分布特征,得出了复杂结构厚煤层综放开采顶煤的破断和失稳规律,为复杂结构顶煤的放出规律及放煤工艺参数对顶煤回收率的影响奠定了基础。In accordance with the Situation that in Qinyuan mine the thick roof coal is with complicated structure and hardly caved , the stress, displacement and fracture distribution of the roof coal is analyzed by digital simulation software UDEC 3.1, and the fracture rule of the coal is concluded to supply a foundation for solving the problem.

关 键 词：UDEC 复杂结构厚顶煤 破断失稳 分布特征 

分 类 号：TD326.1[矿业工程—矿井建设]