纵弯褶曲控制下巷道围岩变形特征分析

Analysis of Deformation Characteristics of Roadway Surrounding Rock under the Control of Longitudinal Bend And Fold

针对纵弯褶曲区域巷道围岩稳定性问题,基于某矿1310工作面顶板岩层力学参数,运用FLAC3D软件对纵弯褶曲背斜、向斜、翼部处巷道应力分布及围岩破坏特征展开模拟研究。模拟结果表明,纵弯褶曲背斜及向斜处巷道围岩的破坏程度较高,受到垂直及水平应力的影响较大,而翼部巷道要更为稳定,围岩受水平应力的影响较小且变形量要远低于背斜及向斜处,在条件适宜的情况下应尽量将巷道布置在翼部,并在模拟基础上确定了不同纵弯褶曲部位巷道的重点支护区域。

FLAC3D software is used to simulate and research the stress distribution of the roadway at the longitudinal bending anticline,syncline and wing and the failure characteristics of the surrounding rock in 1310 working face of a mine.The simulation results show that the wing roadway is more stable.Under suitable conditions,the roadway should be arranged on the wing model as much as possible.