Xinyuan Mine of Yangmei Group reverse fault came up in12220 working face mining, because of roadway in fault area of influence, the area roadway coal body roof was seriously broken, with poor integrity and serious roof fall, anchor wire rope + 29 U "O" type compound totally enclosed supporting was adopted in faults nearby roadway, and based on this, the fault broken area was reinforced by chemical grouting. The technology improved the support strength as well as the overall strength of the roadway surrounding rock, prevented roof from expanding and ensured roadway crossing smoothly the fault zone.
