大断面开切眼过大断层施工技术

Big Fault Starting Cut Construction Technology of Large Sections

开切眼工作面断面大,又遇大断层,给掘进与支护施工带来极大困难。通过分析断层产状及煤层地质条件,采取综掘与炮掘相结合的施工工艺,并优化支护设计,最终安全、高效地通过该断层。

The working face of large section open off cut, and when the big fault, for the excavation and supporting construction brings great difficulties. The shape and the geological condition of coal seam in yield analysis of fault, taked the construction technology of fully mechanized and blasting combining,and optimization support designed, finally, through the fault of high security.