A Study on the Behaviors Law of Strata of Mining Roadway with Deep-holed Explosion in Steep Coal Seam

摘要

According to the ShuangHua coal mine steep seam geological occurrence conditions and combination the steep seam coal no-operator working face deep-holed blasting delayed filling of open stoping, We canceled the original wooden roadway support method and used the sophisticated bolt support method. Through practical observation of the roadway, we acquired the characteristics and laws of roadway deformation. The article discusses the difference of strata roadway between steep seams and gently seams, provides a basis for the steep seam coal no-operator working face deep-holed blasting and the roadway maintenance. The study is of great significance to the steep seam mining.