急倾斜中厚煤层回采方法的改进与应用

Improvement and Application of Mining Technology of Steep Medium-thick Seam

介绍了急倾斜中厚煤层走向长壁后退式采煤方法及采后管理的具体方法、方案及措施,即急倾斜中厚煤层采用单体支护,设好三防措施,在施工顺槽巷道时,提前预留石墙,做为采面回采后沿空留巷使用。文章介绍了石墙的留设方法。

The mining method with longwall, strike and back, and management methods after mining in steep medium - thick seam are introdueed, including using hydraulic prop, using three kinds of protecting mthods, and keeping rock wall beforehand, which is applied in retaining roadvays along goaf after mining. Then the keeping methods of the roek wall is introduced.