大倾角沿空巷道受力变形数值模拟研究  

Research on Numerical Simulation of Roadway Driving Along Gob Based on Stresses and Displacement of Steeply Dipping Seam

作　　者：赵辉[1] 谢广祥[1] 谈国文[1] 

机构地区：[1]安徽理工大学

出　　处：《矿业快报》2007年第9期24-26,共3页Express Information of Mining Industry

摘　　要：采用FLAC2D软件分析了大倾角中厚煤层沿空巷道应力、位移分布规律以及巷道围岩破坏特征。得出底鼓是该类型巷道围岩变形的主要特征。依据沿空巷道应力、内部岩层位移,提出采用锚杆(索)支护的合理措施。The stress and displacement distribution laws of roadway driving along gob in steeply dipping angle and medium-thickness seam were analyzed by using FLAC2D software. The damage characters of roadway surrounding rock were also analyzed. It considered that the floor heave of roadway driving along gob was the principal character of surrounding rock distortion. According to circumstances of the stress of roadway driving along gob and the displacement of deep rock stratum, it raised a more rational measure to use bolt supporting.

关 键 词：大倾角煤层 沿空巷道 底鼓 锚杆(索)支护 

分 类 号：TD322[矿业工程—矿井建设]