大采深高瓦斯松软厚煤层综放工作面巷道布置及支护技术研究

Layout and Support Experimental Study of Deep Mining and High Gas Soft Thick Seam Roadway

大采深高瓦斯松软厚煤层综放工作面巷道矿压大,上隅角瓦斯易积聚,工作面排水困难,选择合适的巷道布置方式、支护方式及支护参数相当重要。通过工业性试验,采用双回路巷道布置,外侧巷道采用沿顶掘进、让压锚杆组合支护方式可以经济、有效地保证工作面正常回采。

It has a large perssure in deep mining and high gas soft thick seam rock.Gas is easy accumulated in solid angle and face has drainage problems.It is important to choose appropriate roadway layout,support patterns and support parameter.Through industrial test,we adopt double loop roadway layout and lateral roadway excavation,so that pressure bolt combination support way can economily and effectively ensure the face normal recovery.