窄煤柱护巷及支护技术研究

Narrow coal pillar and the supporting technology of roadway protection research

以某矿2号煤层综采放顶煤工作面回风顺槽为研究背景,对回风顺槽护巷煤柱的变形机理及合理留设宽度进行了详细的讨论,从而确定了20313综放面护巷煤柱的合理的留设宽度;根据该矿2号煤层20313回采工作面回风巷煤层赋存条件和现有施工技术水平,研究了适应20313回采工作面回风巷围岩的锚杆支护方式,优化了回风巷的支护参数,为矿井的安全有序生产提供良好的辅助基础条件,解决了约束矿井高效生产的技术难题。

A mine in return air along the trough 2 # coal seam fully mechanized top coal caving mining faces as the research background, the return air along the trough the deformation mechanism of chain pillars and reasonable design, width is discussed in detail, so as to determine the 20313 fully mechanized face roadway protection this reasonable width of coal pillar; According to the mine 2 # coal seam in 20313 working face of coal seam occurrence condition and the return air lane existing construction technology level, study the adaptation of 20313 working face of return air roadway bolting, optimize the supporting parameters of return air lane, provide good auxiliary order for mine safety production basic conditions, solve the technical problem of constraint efficient mine production.