22608工作面底抽巷全锚索支护技术研究

Study on Supporting Technology of Full Anchor Cable in 22608 Working Face Drainage Roadway

为了解决西山煤电官地矿22608工作面底抽巷支护困难的问题,通过底抽巷围岩地质力学测试和数值模拟,发现底抽巷的直接顶松软破碎,地应力较高,22608回采工作面的矿压扰动是造成底抽巷顶板应力变化和变形的主要原因。因此,对原有支护设计进行优化,采用全断面锚索支护技术,有效控制顶底板和两帮的变形,取得了良好的支护效果。

In order to solve the problem of the difficulty in supporting the underground drainage roadway of the 22608 working face of Xishan Coal Mine, through the geological mechanical test and numerical simulation of the surrounding rock of the underground drainage roadway, it is found that the direct roof of the bottom pumping roadway is soft and broken, and the in-situ stress is high, and the disturbance of mine pressure on the working face of 22608 mining is the main reason for the change and deformation of the roof stress of the underground drainage roadway.Therefore, by optimizing the original support design and adopting the full-section anchor cable support technology, the deformation of top and bottom plate and two sides can be effectively controlled, and good support effect has been achieved.