赵庄煤矿2#底抽巷围岩稳定性分析及支护技术研究

Analysis of Surrounding Rock Stability and Design of Support Scheme for No.2 Bottom Suction Roadway of Zhaozhuang Coal Mine

以2319工作面底抽巷为研究背景,通过数值模拟与现场实测方法,确定巷道支护效果。研究表明:巷道围岩变形量大小的位置不同及垂直应力分布的情况是影响底抽巷变形破坏的重要因素;采用锚、网、梁、索联合支护方式后,有效地控制了围岩的破坏,提高了巷道的安全性。

In this paper,based on the research background of bottom extraction roadway in the 2319 working face,the support effect of roadway is determined by numerical simulation and field measurement.The results show that:the location of the deformation of roadway surrounding rock and the distribution of vertical stress are the important factors affecting the deformation and failure of bottom drainage roadway;after the combined support of anchor,net,beam and cable is adopted,the damage of surrounding rock is effectively controlled and the safety of roadway is improved.