深部大采高综采面巷道超前支护技术研究

Research on forepoling protection technology in roadways of deep fully mechanized mining face with large mining height

以淮南谢桥煤矿深部大采高1242(3)综采工作面为例,阐述工作面斜顶巷道超前支护支架的架型、支护强度、支护长度等,巷道超前支护采用ZQL2×4000/27/56支架,通过现场实际情况分析了超前支架应用的合理性。

Taking the No. 1242（3） deep fully mechanized mining face with large mining height in Xieqiao Coal Mine of Huainan Mining Group for example, the type and supporting in- tensity parameters and supporting length of forepoling were elaborated, and the ZQL2 × 4000/ 27/56 type forepoling was adopted. Based on the site actual conditions, the rationality of forepol-ing application was analyzed.