Shandong Luxi Mining Co., Ltd.
Coal Mining and Design Department, Tiandi Science and Technology Co., Ltd.
CCTEG Coal Mining Research Institute Co., Ltd.

保证开切眼的稳定性是确保矿井安全高效生产的重要前提,并且对于回风系统的及时贯通也有重要意义。以新疆某矿A503开切眼围岩控制稳定性为研究对象,通过FLAC3D建立开切眼模型,通过数值模拟研究计算,确定了支护参数的合理性。结果表明,巷道表面位移较小,变形量虽仍在增加,但�幅较小,围岩趋于稳定,保证了开切眼的稳定。也为类似条件下的开切眼施工及支护提供一定的参考。

mine, and is also of great significance for the timely connection of the return air system. This paper takes the control stabilityof A503 open-cut hole surrounding rock of a mine in Xinjiang as the research object, establishes the open-cut hole model byFLAC, and determines the rationality of the supporting parameters by numerical simulation. The results show that the sur-face displacement of roadway is small, the deformation is still increasing, but the increase is small, and the surrounding rocktends to be stable, which ensures the stability of open-cut hole. Our study provides some reference for the construction andsupport of open-cut hole under similar conditions.