二次扰动下煤层群上行开采可行性分析

Feasibility Study on Ascending Mining in Seam Groups under Secondary Disturbance

运用经典的理论判别法,(如数理统计法、比值判别法"、三带"判别法、围岩平衡法),以煤层群间距和煤层厚度为基础参数,结合上覆岩层运移规律的经验公式,对二次扰动后上位煤层上行开采的可行性进行分析,为生产实践提供理论基础。

By classical methods（such as numerical statistics,ratio method,three-zone method,surrounding balance method）,taking the seam group distance and thickness as basic parameters,the feasibility of ascending mining was studied after secondary disturbance on the upper rock disposition formula,which provided theoretical basis for the production practice.