急倾斜煤层巷道围岩稳定性控制技术研究

Technology research on surrounding rock stability control of roadway in steep coal seam

急倾斜煤层赋存角度为以上,是国际公认的难采煤层。急倾斜煤层巷道顶板及两帮、底板的岩性不尽相同,应力分布及承载状况复杂,支护体的受载状况具有非对称性,因此,研究煤矿生产中急倾斜煤层巷道围岩稳定性影响因素及控制技术是煤炭生产的重要课题之一,具有积极的实践价值。

Steep coal seam that dip angle is greater than 45,is internationally recognized difficult mining seam. The lithological character of roof,floor and ribs of steep coal seam roadway is not the same,and loading condition and the stress distribution is complex,the support loading condition is non symmetry,therefore,research of the influence factors and control technology of the roadway surrounding rock stability in steep coal seam is one of the important issues in coal production,has a positive practical value.