The Study About Rule Of Overlying Strata Failure And Surface Movement Of Shallow Seam

The author aims at characteristic of shallow stored seam and thick wind-blow sand in Shen-Dong diggings,spot observation and numerical simulation design have been made in Wulanmulun Mine,study on rules of overlying strata failure and distortion circs.Simulation experiment gained detail parameters of overlying strata destroy,which provide trust information about safe mining and protective pillar while coal mine under buildings water and railway,rules of mining seam and surface movement while mining under thick wind-blow sand.