Roof Control Technology of Mine Roadway Heading Face Under Special Geological Condition

In order to solve the roof control problem of the mine roadway heading face under the special geological condition, a classification was conducted on the heading faces of the special geological conditions in Daliuta Mine. The analysis showed that the heading faces would mainly include the heading of the roadway passin g through a fault zone, heading of the roadway passing through thin base rock zone, heading of the roadway with a closed distance to the above seam and heading of t he roadway with a large cross section. Many roof accidents occurred in the heading faces in those regions would seriously threaten the safety heading of the mine. The roof control technology of the mine roadway heading face with the large cross section in the seam with ultra contiguous to above seam under the condition of the fault Z one and thin base rock could solve the roof control problem of the heading face under the special geological condition in Daliuta Mine and a mine rapid safety heading was realized.