Research of Impetus Tendentiousness in Yuncheng Mine 3# Coal Seam

摘要

The depth of Yuncheng 3# coal seam is 600m, the country rock appear softening and weakening. Evaluate the impetus tendentiousness strength of the mine 3# coal seam through the 3# coal sampling on-site and laboratory indicators of the impact energy coal experimental study. The laboratory determination shows the impetus tendentiousness of Yuncheng Mine 3# coal seam belongs to class III which has strong impact tendentious based on national standards.