复合顶板顺槽巷道支护设计技术研究

Research on support design technology of entry with composite roof

同富新煤业目前所开采的10~#煤层顶板为硬质石灰岩,但坚硬石灰岩内含多个软弱夹层,夹层厚度最厚处达6m。复合顶板由于层间离层和塑性离层不稳定,极易发生冒落,原工字钢棚支护方式施工后,巷道变形破坏严重,亟需对复合顶板巷道支护技术展开研究。

The 10# coal seam roof that mainly mined by tongFuxin coal is hard limestone that contains multiple soft interlayer, the maximin interlay thickness is up to 6m. The composite roof is unstable, and prone to falling due to the interlayer separation, after constructed the original I-steel shed supporting ,the roadway deformation is severe, need to study the composite roof roadway support technology.